{"product_id":"1966-albert-einstein-8-princeton-nj-first-day-cover","title":"1966 Albert Einstein 8¢ Princeton, NJ First Day Cover","description":"\u003cp\u003eThis is a 1966 8¢ Albert Einstein First Day Cover featuring an Art Craft cachet from the Prominent Americans Series. The cover bears the official first-day postmark from Princeton, New Jersey, dated March 14, 1966, the centennial of Einstein’s birth.\u003c\/p\u003e\u003cp\u003eEinstein’s groundbreaking work on relativity and quantum theory transformed modern physics and influenced everything from atomic energy to cosmology. The 1966 stamp issue honored his enduring legacy during an era when American science and innovation were at the forefront of national identity.\u003c\/p\u003e\u003cp\u003eThe cachet displays a striking portrait of Einstein alongside his famous equation e=mc² and the quote “The most incomprehensible thing about the world is that it is comprehensible,” with an orbiting atom graphic. The Art Craft design is part of their well-known Prominent Americans series.\u003c\/p\u003e\u003cp\u003eThe cover is addressed to Glenn W. McDonald in Greeley, Colorado, home of the University of Northern Colorado and a historic agricultural community in the American West.\u003c\/p\u003e\u003cp\u003eA clean, attractive addition for collectors of science-themed stamps, Prominent Americans issues, or Art Craft cachets.\u003c\/p\u003e","brand":"Maple Springs","offers":[{"title":"Default Title","offer_id":51388349710500,"sku":null,"price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/4713\/5908\/files\/20260623094517.jpg?v=1782236006","url":"https:\/\/maplespringsllc.com\/products\/1966-albert-einstein-8-princeton-nj-first-day-cover","provider":"Maple Springs","version":"1.0","type":"link"}