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PERCY LAVON JULIAN ~ BLACK HERITAGE ~ CHEMIST ~ BLACK HISTORY #2746 Plate Block of 4 x 29 US Postage Stamps
This is a numbered Plate Block of 4 stamps. ~ On January 29, 1993 in Chicago, IL the USPS issued the 16th addition to the Black Heritage series, honoring Percy Lavon Julian, a research chemist known for his many contributions to science. A pioneer in chemical synthesis of drugs used in medicine, Julian developed synthetic physostigmine for glaucoma, cortisone for arthritis, and the female hormone progesterone. He also owned more than 100 chemical patents, many for products made from soybeans, including a soya protein used in fire extinguishers during World

Price is $8.00
Price: $7.95