{"product_id":"1973-progress-in-electronics-15-new-york-ny-first-day-cover","title":"1973 Progress in Electronics 15¢ New York, NY First Day Cover","description":"\u003cp\u003eThis Art Craft cacheted First Day Cover features the 1973 U.S. 15¢ Progress in Electronics stamp, postmarked in New York, NY on July 10, 1973. The cover displays a detailed diagram of historic electronic components surrounding the stamp, which illustrates a microphone, radio tube, TV camera tube, and radio speaker.\u003c\/p\u003e\u003cp\u003eThe stamp honors the rapid evolution of electronics technology during the 20th century, from early wireless experiments to solid-state devices that transformed communications, broadcasting, and computing. Issued as part of a series recognizing American innovation, it captures the era's excitement over transistors, integrated circuits, and consumer electronics that were reshaping daily life.\u003c\/p\u003e\u003cp\u003eA notable detail is the cachet's inclusion of specific historic references such as the Marconi Spark Coil, De Forest Audion, and epitaxial micrologic circuit, providing a timeline of key inventions. Produced by Art Craft, one of the most respected cachet makers of the period, the design is both educational and visually engaging.\u003c\/p\u003e\u003cp\u003eThis cover makes an excellent addition to any technology, communications, or topical electronics collection, offering strong display value and solid philatelic interest in fine condition.\u003c\/p\u003e","brand":"Maple Springs","offers":[{"title":"Default Title","offer_id":51392110985380,"sku":null,"price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/4713\/5908\/files\/20260629142242.jpg?v=1782776678","url":"https:\/\/maplespringsllc.com\/products\/1973-progress-in-electronics-15-new-york-ny-first-day-cover","provider":"Maple Springs","version":"1.0","type":"link"}