{"id":"r1yqtay","internal_id":"f834225d-c90c-4e3b-90ae-21389b6f3ebb","links":{"img_thumbnail":"https://digital.sciencehistory.org/downloads/deriv/1ei4kbz/thumb_large_2X?disposition=inline","html_self":"https://digital.sciencehistory.org/works/r1yqtay"},"title":"Percy Lavon Julian commemorative stamp sheet","additional_title":[],"format":["image","text"],"genre":["Postage stamps"],"medium":[],"extent":["22 cm W x 29 cm H"],"language":["English"],"provenance":"","subject":["Julian, Percy Lavon, 1899-1975","Commemorative postage stamps","Chemists","African American chemists","First day covers (Philately)"],"department":"Archives","series_arrangement":[],"rights":"http://rightsstatements.org/vocab/InC/1.0/","rights_holder":"United States Postal Service","digitization_funder":"","file_creator":"Auerbach, Jahna","description":"Percy Lavon Julian (1899-1975) commemorative stamp sheet from the US Postal Service Black Heritage series. Julian first synthesized the drug physostigmine. He pioneered the synthesis of important medicinal compounds from abundant plant sources, making them more affordable to mass-produce.\n\nThe sheet includes a biographical overview of Dr. Julian's career, education, and contributions to medicine","description_html":"<p>Percy Lavon Julian (1899-1975) commemorative stamp sheet from the US Postal Service Black Heritage series. Julian first synthesized the drug physostigmine. He pioneered the synthesis of important medicinal compounds from abundant plant sources, making them more affordable to mass-produce.</p>\n\n<p>The sheet includes a biographical overview of Dr. Julian's career, education, and contributions to medicine</p>","published_at":"2026-07-16T19:14:29Z","updated_at":"2026-07-16T19:14:29Z","creator":[{"category":"creator_of_work","value":"United States Postal Service"},{"category":"engraver","value":"United States. Bureau of Engraving and Printing"}],"date_of_work":[{"start":"1993-01-29","start_qualifier":"","finish":"","finish_qualifier":"","note":"","formatted":"1993-Jan-29"}],"place":[{"category":"place_of_creation","value":"United States"}],"inscription":[],"related_link":[],"additional_credit":[],"physical_container":{"box":"","folder":"1","volume":"","part":"","page":"","shelfmark":"","reel":"","formatted":"Folder 1"}}