{"product_id":"1983-joseph-priestley-first-day-cover","title":"1983 Joseph Priestley First Day Cover","description":"\u003cp dir=\"auto\"\u003eThis commemorative First Day Cover honors Joseph Priestley (1733–1804), the English clergyman, scientist, educator, and philosopher credited with discovering oxygen and advancing pneumatic chemistry, as well as contributing to Unitarian theology (Scott #2038). The 20¢ stamp shows a dignified portrait of Priestley in period attire against an orange background. The cachet features a large grayscale portrait of Priestley with his thoughtful expression, accompanied by a charming inset illustration of him at work in his laboratory—seated beside scientific apparatus including a globe, air pump, and early pneumatic devices—highlighting his groundbreaking experiments. Postmarked April 13, 1983 (issue date), in Northumberland, Pennsylvania—where Priestley spent his later years and is buried—with a precise \"First Day of Issue\" cancellation (ZIP 17857). Ideal for science history collectors, chemistry or physics philatelists, Enlightenment-era enthusiasts, or those interested in interdisciplinary figures (religion and science). In outstanding unaddressed vintage condition with sharp details.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e","brand":"Maple Springs","offers":[{"title":"Default Title","offer_id":51233982611620,"sku":null,"price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/4713\/5908\/files\/05092025_076.jpg?v=1770410634","url":"https:\/\/fdc-vault.com\/products\/1983-joseph-priestley-first-day-cover","provider":"Maple Springs - FDC Vault","version":"1.0","type":"link"}