{"product_id":"1977-energy-conservation-13-ridley-park-pa-first-day-cover-1","title":"1977 Energy Conservation 13¢ Ridley Park, PA First Day Cover","description":"\u003cp\u003eThis 1977 13¢ Energy Conservation First Day Cover bears the official October 20, 1977 postmark from Ridley Park, Pennsylvania. The colorful cachet illustrates wind power with a large turbine and a forward-looking profile, captioned “FOR THE FUTURE” and “WIND ENERGY CONSERVATION\/DEVELOPMENT.”\u003c\/p\u003e\u003cp\u003eThe stamp was issued during the 1970s energy crisis when the United States sought to reduce dependence on foreign oil through conservation and renewable sources. Wind energy was highlighted as a promising domestic technology, making this issue a tangible record of that national conversation.\u003c\/p\u003e\u003cp\u003eA notable detail is the cachet’s split design: the left side focuses on wind generation while the right side echoes the stamp’s sun-and-plug motif, creating a unified energy-conservation theme across the entire cover.\u003c\/p\u003e\u003cp\u003eCollectors will appreciate the clean condition, crisp postmark, and strong topical appeal for energy, environment, or 1970s Americana collections.\u003c\/p\u003e","brand":"Maple Springs","offers":[{"title":"Default Title","offer_id":51394980577444,"sku":null,"price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/4713\/5908\/files\/20260702114754.jpg?v=1783045212","url":"https:\/\/maplespringsllc.com\/products\/1977-energy-conservation-13-ridley-park-pa-first-day-cover-1","provider":"Maple Springs","version":"1.0","type":"link"}