{"product_id":"1963-luminescent-tagged-8-airmail-dayton-oh-first-day-cover","title":"1963 Luminescent Tagged 8¢ Airmail Dayton, OH First Day Cover","description":"\u003cp\u003eThis Art Craft First Day Cover features the 8¢ Luminescent Tagged Airmail stamp, postmarked in Dayton, Ohio on August 1, 1963. The cachet illustrates the U.S. Post Office facer-cancelling machine used in early automated mail processing.\u003c\/p\u003e\u003cp\u003eThe luminescent tagging experiment marked an important step in postal automation during the early 1960s. By applying a phosphor coating to stamps, the Post Office could test high-speed sorting equipment that read the glowing marks under ultraviolet light, dramatically improving mail-handling efficiency.\u003c\/p\u003e\u003cp\u003eA notable detail is the explanatory text box noting that the stamps were overprinted with luminescent material specifically to test automatic speed handling of mail. The red airmail stamp design shows a jetliner over the U.S. Capitol dome.\u003c\/p\u003e\u003cp\u003eA fine addition for collectors of airmail issues, postal automation history, or Art Craft cachets, this cover remains in clean, collectible condition with a clear first-day cancel.\u003c\/p\u003e","brand":"Maple Springs","offers":[{"title":"Default Title","offer_id":51388310257828,"sku":null,"price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/4713\/5908\/files\/20260623082319.jpg?v=1782231758","url":"https:\/\/maplespringsllc.com\/products\/1963-luminescent-tagged-8-airmail-dayton-oh-first-day-cover","provider":"Maple Springs","version":"1.0","type":"link"}