{"product_id":"1973-progress-in-aviation-13-chicago-il-first-day-cover-1","title":"1973 Progress in Aviation 13¢ Chicago, IL First Day Cover","description":"\u003cp\u003eThis Art Craft First Day Cover features the 1973 13¢ Airmail coil stamp issued on December 27 in Chicago, Illinois. The cover displays a se-tenant pair of the red coil stamps with the distinctive \"USAirmail\" and envelope design, cancelled with the official first-day postmark.\u003c\/p\u003e\u003cp\u003eThe cachet celebrates \"Progress in Aviation,\" illustrating the dramatic evolution from a 1920s-era biplane to a sleek supersonic jet. Issued during the height of the jet age, the stamp and cachet together highlight how airmail helped shrink distances and transform global communication and commerce in the 20th century.\u003c\/p\u003e\u003cp\u003eA notable detail is the Art Craft \"Series of 1973\" imprint and the dynamic diagonal layout that visually links the two aircraft across decades of technological advancement. The cover is unaddressed, preserving its clean collector appearance.\u003c\/p\u003e\u003cp\u003eA strong addition for aviation or airmail topical collections, this well-preserved FDC offers both postal history and striking graphic appeal.\u003c\/p\u003e","brand":"Maple Springs","offers":[{"title":"Default Title","offer_id":51392046104740,"sku":null,"price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/4713\/5908\/files\/20260629142049.jpg?v=1782776447","url":"https:\/\/maplespringsllc.com\/products\/1973-progress-in-aviation-13-chicago-il-first-day-cover-1","provider":"Maple Springs","version":"1.0","type":"link"}