{"id":"S85101182","label":"Photographic chemistry--Early works to 1850","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85101182","normalized_label":"photographic chemistry--early works to 1850","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85101182","provider":"lcsh","revision":"11451568c1d6fb27","taxonomy_revision":"f050b5d4780b1289","title":"Photographic chemistry--Early works to 1850","url":"/topics/S85101182","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10126555143257342468","address_version":"morton4x16-v1","coordinates":[0,20,18985,63488],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}