{"product_id":"postcard-holders-per-100-polypropelene","title":"Archival Polypropylene Postcard Sleeves - Vintage \u0026 Modern Sizes","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eFor postcard collectors who take preservation seriously, the quality of your storage sleeves matters as much as the cards inside them. These archival-grade polypropylene postcard holders from SAFE are manufactured to the highest philatelic and deltiology standards — completely free of stearates, chemical plasticizers, and PVC. That means no yellowing, no off-gassing, no chemical migration, and no long-term damage to your cherished postcards over time. Available in two sizes to fit both vintage and modern format cards, these side-opening sleeves keep cards snugly in place while allowing quick, easy access without wear to the edges. Whether you're housing rare early 1900s linen postcards, real photo postcards (RPPCs), mid-century chrome cards, or today's modern continental-size issues, SAFE has the right sleeve for your collection. Sold in packs of 100, these are the everyday workhorse sleeve for any serious deltiologist's storage system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eSide-Opening Design – Cards slide in from the side for a secure fit that prevents slipping while keeping tops open for easy retrieval.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCrystal-Clear Clarity – Transparent sleeves allow full front-and-back viewing without ever removing the card from its sleeve.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCollector-Grade Manufacturing – \u003cmeta charset=\"utf-8\"\u003e Completely free of stearates, chemical plasticizers, and PVC. Built to the same archival standards trusted by museums, philatelists, and professional dealers worldwide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eNo. 9248 (Vintage Postcards): 3-3\/4″ × 5-3\/4″ (95mm x 145mm)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eNo. 9249 (Modern Postcards): 4-3\/8″ × 5-7\/8″ (110mm x 150mm)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eOpening: Side-opening\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMaterial: Polypropylene — PVC-free, plasticizer-free, stearate-free\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eQuantity: 100 sleeves per pack\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SAFE","offers":[{"title":"No. 9248: Vintage Postcard Sleeves","offer_id":48611772465395,"sku":"9248","price":14.95,"currency_code":"USD","in_stock":true},{"title":"No. 9249: Continental\/Modern Postcard Sleeves","offer_id":48611772498163,"sku":"9249","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9750\/4755\/files\/9248-1.webp?v=1773865213","url":"https:\/\/www.safepub.com\/products\/postcard-holders-per-100-polypropelene","provider":"SAFE® Collecting Supplies","version":"1.0","type":"link"}