{"product_id":"1974-mineral-heritage-tourmaline-10-lincoln-ne-first-day-cover","title":"1974 Mineral Heritage Tourmaline 10¢ Lincoln, NE First Day Cover","description":"\u003cp\u003eThis Artmaster cacheted First Day Cover features the 10¢ Tourmaline stamp from the United States Mineral Heritage series, postmarked in Lincoln, Nebraska on June 13, 1974. The cover was produced for the National Gem and Mineral Show held in Lincoln that year.\u003c\/p\u003e\u003cp\u003eThe stamp honors America's rich mineral legacy, spotlighting tourmaline as one of the nation's prized gem minerals. Issued during a period of growing public interest in geology and natural resources, the Mineral Heritage series celebrated the scientific and economic importance of American minerals.\u003c\/p\u003e\u003cp\u003eThe cachet depicts a gemologist examining mineral specimens under magnification, directly referencing the concurrent National Gem and Mineral Show. The Artmaster design is crisp and informative, with clear event lettering below the illustration.\u003c\/p\u003e\u003cp\u003eA fine addition for collectors of U.S. commemoratives, mineral topicals, or Artmaster cachets, this cover displays fresh color and a clear first-day cancel.\u003c\/p\u003e","brand":"Maple Springs","offers":[{"title":"Default Title","offer_id":51394926968996,"sku":null,"price":3.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/4713\/5908\/files\/20260702110446.jpg?v=1783043230","url":"https:\/\/fdc-vault.com\/products\/1974-mineral-heritage-tourmaline-10-lincoln-ne-first-day-cover","provider":"Maple Springs - FDC Vault","version":"1.0","type":"link"}