{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"XYL155434","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"turkish_school_16th_century","item_category5":"balown","item_list_name":"search_results","item_name":"takyuddin_and_other_astronomers_at_the_galata_observatory_founded_in_1557_by_sultan_suleyman_from_th","item_variant":"undefined"},{"item_id":"CH15834","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"studies_of_the_illumination_of_the_moon_fol_1r_from_codex_leicester_c_1506_08_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"BAL116092","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"egyptian_second_intermediate_period_c_1750_c_1650_bc","item_category5":"not_balown","item_list_name":"search_results","item_name":"detail_of_the_rhind_mathematical_papyrus_hyksos_period_15th_dynasty_c_1550_bc_papyrus_see_also_9712","item_variant":"undefined"},{"item_id":"CHT166621","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"calculating_machine_invented_by_blaise_pascal_1623_62_in_1642_wood_metal","item_variant":"undefined"},{"item_id":"CHT162794","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"reisch_gregor_d_1525","item_category5":"not_balown","item_list_name":"search_results","item_name":"allegory_of_arithmetic_from_margarita_philosophica_by_gregor_reisch_1503_woodcut","item_variant":"undefined"},{"item_id":"CH656754","item_category":"illustration","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"kandinsky_wassily_1866_1944","item_category5":"not_balown","item_list_name":"search_results","item_name":"in_einander_1928_watercolour_pen_and_black_ink_on_paper","item_variant":"undefined"},{"item_id":"XIR154000","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"byzantine_school_12th_century","item_category5":"balown","item_list_name":"search_results","item_name":"st_pachomius_d_346_mosaic","item_variant":"undefined"},{"item_id":"PVD1692333","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"unknown_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_hewlett_packard_s_first_calculator_1968_photo","item_variant":"undefined"},{"item_id":"XIR158206","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"ibn_jusuf_abu_bakr_fl_1208_18","item_category5":"balown","item_list_name":"search_results","item_name":"astrolabe_1216_metal","item_variant":"undefined"},{"item_id":"XIR95894","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"balown","item_list_name":"search_results","item_name":"calculating_machine_invented_by_blaise_pascal_1623_62_wood_metal","item_variant":"undefined"},{"item_id":"CHT166620","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"calculating_machine_invented_by_blaise_pascal_1623_62_in_1642_wood_metal","item_variant":"undefined"},{"item_id":"MFR348325","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"modern_reproduction_of_a_mariner_s_astrolabe_brass","item_variant":"undefined"},{"item_id":"MFR348317","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"adams_george_1750_95","item_category5":"not_balown","item_list_name":"search_results","item_name":"18_inch_hadley_quadrant_or_octant_c_1760_wood_brass_glass","item_variant":"undefined"},{"item_id":"GIA4812783","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"la_pascaline_calculation_machine_of_blaise_pascal","item_variant":"undefined"},{"item_id":"XWM218460","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"la_hyre_laurent_de_1606_56","item_category5":"balown","item_list_name":"search_results","item_name":"allegory_of_arithmetic_1650_oil_on_canvas","item_variant":"undefined"},{"item_id":"MFR348329","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"adams_george_1750_95","item_category5":"not_balown","item_list_name":"search_results","item_name":"sextant_brass_wood_glass","item_variant":"undefined"},{"item_id":"BAL136311","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"plate_xx_from_volume_i_of_the_mathematical_principles_of_natural_philosophy_by_sir_isaac_newton_1642","item_variant":"undefined"},{"item_id":"BL3301180","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"this_letter_from_ada_lovelave_to_charles_babbage_proposes_an_example_of_a_calculation_that_may_be_wo","item_variant":"undefined"},{"item_id":"BAL136314","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"plate_i_illustrating_law_ii_from_volume_i_of_the_mathematical_principles_of_natural_philosophy_by_si","item_variant":"undefined"},{"item_id":"XJF308795","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"balown","item_list_name":"search_results","item_name":"astronomical_diagrams_fol_2r_from_the_codex_leicester_1508_1512_pen_ink_on_paper_b_w_photo","item_variant":"undefined"},{"item_id":"CHT171359","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"calculating_machine_invented_by_blaise_pascal_1623_63_in_1642_wood_and_metal","item_variant":"undefined"},{"item_id":"MFR348319","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"original_set_of_napier_s_bones_with_fitted_case_and_contemporary_publication_1685_boxwood","item_variant":"undefined"},{"item_id":"PHL441695","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"pollock_jackson_1912_56","item_category5":"not_balown","item_list_name":"search_results","item_name":"male_and_female_1942_43_oil_on_canvas","item_variant":"undefined"},{"item_id":"XJF359054","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dutch_school_17th_century","item_category5":"balown","item_list_name":"search_results","item_name":"johann_adam_schall_von_bell_from_china_illustrata_by_athanasius_kircher_1667_engraving","item_variant":"undefined"},{"item_id":"MFR348305","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"backstaff_lignum_vitae_boxwood","item_variant":"undefined"},{"item_id":"XJF359014","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"delaram_francis_c_1590_1627","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_a_gentleman_believed_to_be_thomas_harriot_c_1620_engraving","item_variant":"undefined"},{"item_id":"JLJ4686828","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"tour_georges_de_la_1593_1652","item_category5":"not_balown","item_list_name":"search_results","item_name":"money_pays_also_means_settling_accounts_17th_century_oil_on_canvas","item_variant":"undefined"},{"item_id":"XIR180669","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"leroux_louis_hector_1829_1900","item_category5":"balown","item_list_name":"search_results","item_name":"scene_from_the_youth_of_blaise_pascal_1623_62_1860_70_oil_on_canvas","item_variant":"undefined"},{"item_id":"LLE5234064","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"bogdanov_belsky_nikolai_petrovich_1868_1945","item_category5":"not_balown","item_list_name":"search_results","item_name":"mental_calculation_1895_colour_litho","item_variant":"undefined"},{"item_id":"CHT164098","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_latin_11411_fol_99_pythagoras_sphere_vellum","item_variant":"undefined"},{"item_id":"MFR348349","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"hadley_s_quadrant_with_transversal_boxwood_scale_c_1750_brass_wood","item_variant":"undefined"},{"item_id":"CH1770148","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"bayer_herbert_1900_85","item_category5":"not_balown","item_list_name":"search_results","item_name":"poster_advertising_the_calculating_machine_olivetti_divisumma_1953_colour_lithograph","item_variant":"undefined"},{"item_id":"DGA3599519","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"fabriano_gentile_da_c_1370_1427","item_category5":"not_balown","item_list_name":"search_results","item_name":"arithmetic_aritmetica_14011_12_fresco","item_variant":"undefined"},{"item_id":"XAB364919","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"moravov_alexander_viktorovich_1878_1951","item_category5":"balown","item_list_name":"search_results","item_name":"working_days_calculation_1934_oil_on_canvas","item_variant":"undefined"},{"item_id":"NUM42003","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_12th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"diagrams_of_measurements_and_text_vellum","item_variant":"undefined"},{"item_id":"XZL151817","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"astrolabe_for_calculating_horoscopes_european_brass","item_variant":"undefined"},{"item_id":"BAL267604","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"holbein_the_younger_hans_1497_8_1543","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_ambassadors_detail_1533_oil_on_oak","item_variant":"undefined"},{"item_id":"DPA7391280","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category4":"schoening","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_mechanism_for_antikythera_205_bc_bronze","item_variant":"undefined"},{"item_id":"MFR348344","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"ramsden_jesse_1735_1800","item_category5":"not_balown","item_list_name":"search_results","item_name":"double_framed_bridge_sextant_c_1780_brass_wood","item_variant":"undefined"},{"item_id":"GIA4784909","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"daschitzsky_jiri_16th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_great_comet_of_1577_above_prague_engraving_by_jiri_daschitzsky_this_comet_c_1577_v1_is_the_first","item_variant":"undefined"},{"item_id":"MFR348307","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lenoir_etienne_1744_1832","item_category5":"not_balown","item_list_name":"search_results","item_name":"portable_transit_instrument_c_1800_brass","item_variant":"undefined"},{"item_id":"HST3083730","item_category":"photo","item_category2":"in_copyright","item_category3":"standard","item_category4":"cumming_robert_h_b_1943","item_category5":"not_balown","item_list_name":"search_results","item_name":"67_body_arc_off_circle_center_1975_gelatin_silver_contact_print_with_drawing","item_variant":"undefined"},{"item_id":"MFR348315","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"nairne_blunt_fl_1770s","item_category5":"not_balown","item_list_name":"search_results","item_name":"sextant_c_1780_brass","item_variant":"undefined"},{"item_id":"BOO228315","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"russian_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"sun_dial_c_1720_wood_ivory","item_variant":"undefined"},{"item_id":"MFR348306","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"backstaff_lignum_vitae_boxwood","item_variant":"undefined"},{"item_id":"GIA4792133","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_16th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"an_astronomer_doing_calculations_using_a_sextant_during_an_eclipse_engraving_of_the_16th_century","item_variant":"undefined"},{"item_id":"MFR348311","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school","item_category5":"not_balown","item_list_name":"search_results","item_name":"modern_replica_of_napier_s_bones_boxwood_walnut","item_variant":"undefined"},{"item_id":"PFH3122213","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"china_two_pages_from_the_zhoubi_suanjing_zhou_dynasty_sundial_of_astronomy_and_calculation_illustrat","item_variant":"undefined"},{"item_id":"CHT223767","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"reisch_gregor_d_1525","item_category5":"not_balown","item_list_name":"search_results","item_name":"allegory_of_astronomy_from_an_edition_of_margarita_philosophica_by_gregor_reisch_published_in_basel_","item_variant":"undefined"},{"item_id":"FIA7391262","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_antikythera_mechanism_205_bc_bronze","item_variant":"undefined"},{"item_id":"CHT213012","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"learning_mathematics_illustration_from_a_franco_german_book_early_18th_century_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"MFR348348","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"bennett_john_fl_1760","item_category5":"not_balown","item_list_name":"search_results","item_name":"plain_theodolite_with_trade_card_on_inside_of_case_lid_c_1780_brass","item_variant":"undefined"},{"item_id":"MFR348337","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"lodestone_magnetite","item_variant":"undefined"},{"item_id":"LRI4643231","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"death_of_archimedes_of_syracuse_mosaic_18th_century","item_variant":"undefined"},{"item_id":"BL3264129","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"arundel_263_f_220v_f_221_notes_mathematical_calculations_from_codex_arundel_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"DND357176","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"jantar_mantar_astronomical_observatory_photo","item_variant":"undefined"},{"item_id":"MFR348309","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lenoir_etienne_1744_1832","item_category5":"not_balown","item_list_name":"search_results","item_name":"reflecting_circle_brass_glass","item_variant":"undefined"},{"item_id":"ROC491611","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_bell_ringing_device_c_1510_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"GRP434399","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"wynne_henry_fl_1662_1709","item_category5":"not_balown","item_list_name":"search_results","item_name":"sundial_plate_c_1690_brass","item_variant":"undefined"},{"item_id":"XJF294097","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_school_16th_century_after","item_category5":"balown","item_list_name":"search_results","item_name":"a_volvelle_possibly_showing_the_cycles_of_the_moon_after_an_illustration_from_astronomicon_caesareum","item_variant":"undefined"},{"item_id":"XJF311616","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"balown","item_list_name":"search_results","item_name":"astronomical_diagrams_from_the_codex_leicester_1508_12_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"MEV5047316","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"codex_atlanticus_sheet_1062_recto_1478_1519_pen_ink","item_variant":"undefined"},{"item_id":"BL3530800","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"simmons_matthew_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"direction_for_english_travellers_distance_chart_1635_ink_on_vellum","item_variant":"undefined"},{"item_id":"BL3898342","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dawson_robert_fl_1811","item_category5":"not_balown","item_list_name":"search_results","item_name":"caernarfon_bay_1816_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"LLM976621","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"finding_a_world_by_arithmetic_litho","item_variant":"undefined"},{"item_id":"PFH1184201","item_category2":"in_copyright","item_category3":"standard","item_category4":"malian","item_category5":"not_balown","item_list_name":"search_results","item_name":"mali_astronomical_treatise_from_the_kitab_hisab_al_nimar_wa_huwa_fi_ilm_al_nujum_or_calculation_of_n","item_variant":"undefined"},{"item_id":"LSE4094518","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"french_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"blackboard_students_school_in_thua_thien_thua_thien_hue_c_1930","item_variant":"undefined"},{"item_id":"DGA554544","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"g_dagli_orti","item_category5":"not_balown","item_list_name":"search_results","item_name":"marble_fragment_of_tabula_iliaca_capitolina_depicting_scenes_of_trojan_war_with_greek_inscriptions_b","item_variant":"undefined"},{"item_id":"NWI4900546","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"indians_of_america_inca_teacher_giving_lessons_to_learn_to_keep_accounts_compatbilite_with_the_help_","item_variant":"undefined"},{"item_id":"PNP257046","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_page_from_abraham_lincoln_s_1808_65_mathematics_schoolbook_litho","item_variant":"undefined"},{"item_id":"LLM5221566","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dore_gustave_1832_83","item_category5":"not_balown","item_list_name":"search_results","item_name":"gustave_dore_bible_jesus_stilling_the_tempest_engraving","item_variant":"undefined"},{"item_id":"CH986638","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"jensen_alfred_1903_81","item_category5":"not_balown","item_list_name":"search_results","item_name":"according_to_the_numbers_per_i_1973_oil_on_canvas","item_variant":"undefined"},{"item_id":"MEV5046938","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"codex_atlanticus_sheet_873_recto_1478_1519_pen_ink","item_variant":"undefined"},{"item_id":"LSE4085522","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"calculation_of_the_quantity_of_gold_contained_in_the_sea_1927","item_variant":"undefined"},{"item_id":"FIA5382576","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"bogdanov_belsky_nikolai_petrovich_1868_1945","item_category5":"not_balown","item_list_name":"search_results","item_name":"mental_calculation_at_primary_school_1895_oil_on_canvas","item_variant":"undefined"},{"item_id":"XEE4408925","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"gottfried_wilhelm_leibniz_1646_1716_german_philosopher_and_mathematician_demonstrating_his_theories_","item_variant":"undefined"},{"item_id":"XIR347307","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_13th_century","item_category5":"balown","item_list_name":"search_results","item_name":"computing_the_liturgical_calendar_from_le_miroir_de_la_nature_by_vincent_de_beauvais_vellum","item_variant":"undefined"},{"item_id":"BL3297941","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_picture_of_a_sailing_ship_a_galleon_drawing_a_book_on_the_science_of_navigation_practical_rules_an","item_variant":"undefined"},{"item_id":"PFH1184204","item_category2":"in_copyright","item_category3":"standard","item_category4":"malian","item_category5":"not_balown","item_list_name":"search_results","item_name":"mali_astronomical_treatise_from_the_kitab_hisab_al_nimar_wa_huwa_fi_ilm_al_nujum_or_calculation_of_n","item_variant":"undefined"},{"item_id":"CHT695008","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_school_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"jewish_moneylender_with_his_family_receiving_clients_1491_wood_engraving","item_variant":"undefined"},{"item_id":"PIX4655496","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"sebastien_beaucourt","item_category5":"not_balown","item_list_name":"search_results","item_name":"statue_of_the_astronomer_urbain_le_verrier_statue_of_urbain_le_verrier_in_paris_statue_of_the_astron","item_variant":"undefined"},{"item_id":"UIS5084465","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"henry_cavendish_s_torsion_balance_1798","item_variant":"undefined"},{"item_id":"HUM351604","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"korean_school","item_category5":"not_balown","item_list_name":"search_results","item_name":"counting_sticks_joseon_dynasty_wood","item_variant":"undefined"},{"item_id":"MFR348336","item_category":"object","item_category2":"in_copyright","item_category3":"standard","item_category4":"metz_fl_c_1700","item_category5":"not_balown","item_list_name":"search_results","item_name":"dutch_surveying_circle_or_holland_circle_c_1700_brass","item_variant":"undefined"},{"item_id":"MFR348335","item_category":"object","item_category2":"in_copyright","item_category3":"standard","item_category4":"wright_thomas_fl_c_1740","item_category5":"not_balown","item_list_name":"search_results","item_name":"surveyor_s_level_c_1740_brass","item_variant":"undefined"},{"item_id":"XIR157811","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"balown","item_list_name":"search_results","item_name":"calculating_machine_invented_by_blaise_pascal_1623_62_1644_metal_b_w_photo","item_variant":"undefined"},{"item_id":"XJF193898","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_16th_century_after","item_category5":"balown","item_list_name":"search_results","item_name":"a_genethliac_or_astrological_horoscope_from_science_and_literature_in_the_middle_ages_written_and_en","item_variant":"undefined"},{"item_id":"MFR348332","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"modern_replica_of_a_cross_staff_by_harriet_wynter_ltd_ivory_wood","item_variant":"undefined"},{"item_id":"MFR348308","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"lodestone_in_fish_skin_leather_case_mixed_media","item_variant":"undefined"},{"item_id":"ACD224657","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"report_of_the_sessions_at_the_academie_des_sciences_by_jean_joseph_le_verrier_1811_77_on_the_planet_","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"calculation","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":413,"search_results_page_number":1}