{"product_id":"1977-energy-conservation-13-ridley-park-pa-first-day-cover","title":"1977 Energy Conservation 13¢ Ridley Park, PA First Day Cover","description":"\u003cp\u003eThis 1977 13¢ Energy Conservation First Day Cover features the official U.S. stamp issued October 20 in Ridley Park, Pennsylvania, paired with a colorful cachet highlighting wind power as part of the broader conservation theme.\u003c\/p\u003e\u003cp\u003eThe 1970s energy crisis prompted the U.S. Postal Service to issue stamps promoting conservation and alternative sources. Wind energy, depicted prominently on the left-side cachet with a modern turbine and forward-looking figure, was gaining attention as a clean, renewable option amid oil shortages and rising fuel costs.\u003c\/p\u003e\u003cp\u003eA notable detail is the contrast between the stamp’s solar\/lightbulb motif and the cachet’s focus on wind development, offering collectors both official artwork and a topical extension of the conservation message.\u003c\/p\u003e\u003cp\u003eIn excellent condition with a clear first-day cancel, this cover makes an appealing addition for collectors of 1970s U.S. issues, energy topicals, or environmental postal history.\u003c\/p\u003e","brand":"Maple Springs","offers":[{"title":"Default Title","offer_id":51394974646436,"sku":null,"price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/4713\/5908\/files\/20260702114518.jpg?v=1783045092","url":"https:\/\/maplespringsllc.com\/products\/1977-energy-conservation-13-ridley-park-pa-first-day-cover","provider":"Maple Springs","version":"1.0","type":"link"}