{"title":"Postcard Sleeves \u0026 Holders","description":"\u003cp\u003e\u003cspan class=\"category-description\"\u003eDiscover the most durable, heavyweight postcard holders by visiting our website or calling us today! Our sleeves are made from fully transparent, crystal-clear rigid polyester on both sides. We offer postcard holders sealed on three sides, ensuring maximum protection. These holders are 100% free of plasticizers and plasticized PVC. Our heavyweight sleeves boast an 8-mil thickness, while our mediumweight sleeves are 4-mil.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSAFE offers a wide range of fully transparent holders to fit your collection. Crafted from polyester, they are crystal clear on both sides and comparable to Mylar-D and Melinex, certified by the Library of Congress. These holders are completely inert, archival quality, and free from plasticized PVC, stearates, and chemical softeners, providing the utmost protection with closure on three sides.\u003c\/p\u003e","products":[{"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"},{"product_id":"archival-protective-currency-sleeves-wraparound","title":"Archival Protective Sleeves - Medium-Weight, Wraparound","description":"\u003cp\u003eFor banknotes, large currency, and oversized paper collectibles that need frequent handling without compromising protection, these Medium-Weight Archival Wraparound Sleeves provide the perfect the solution. The construction is purpose-built for ease and security in equal measure. The top and bottom edges are welded shut, firmly securing your note or document along both horizontal edges. The shorter side edges remain open, forming a slit spine that makes loading and removal smooth and natural — no fighting with tight corners, no bending or creasing during insertion. And across the top, a self-closing fold-over flap tucks over your collectible to provide that extra layer of protection against dust, handling, and accidental exposure.\u003c\/p\u003e\n\u003cp\u003eThese Medium-Weight Protective Sleeves are engineered to the highest archival standards — made from a dimensionally stable, plasticizer-free special polyester film that is 100% free of stearates, chemical plasticizers, and PVC of any kind. No off-gassing, no chemical migration, no long-term damage to your collectibles. Just clean, inert, crystal-clear protection.\u003c\/p\u003e\n\u003cp\u003eThe fully transparent polyester construction means you never have to remove an item to identify, display, or admire it — face and reverse are visible at all times. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOpening: Self-closing fold-over flap (long side)\u003c\/li\u003e\n\u003cli\u003eFilm thickness: 0.1mm (medium-weight)\u003c\/li\u003e\n\u003cli\u003eDimensions: Various - listed below\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable width=\"100%\" style=\"width: 94.7095%; height: 89.1954px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 28.9766px;\"\u003e\n\u003ctd style=\"width: 16.1111%; height: 28.9766px;\"\u003e\u003cstrong\u003e Item No. \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 27.037%; height: 28.9766px;\"\u003e\u003cstrong\u003eExternal Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.3333%; height: 28.9766px;\"\u003e\u003cstrong\u003eUsed for...*\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 12.4074%; height: 28.9766px;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 27.625px;\"\u003e\n\u003ctd style=\"width: 16.1111%; height: 27.625px;\"\u003e\u003ca href=\"\/products\/archival-protective-currency-sleeves-wraparound\" title=\"archival protective currency sleeves\" rel=\"noopener\" target=\"_blank\"\u003eNo. 1291\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 27.037%; height: 27.625px;\"\u003e8-1\/8\" x 4-7\/8\"\u003cbr\u003e(\u003cspan\u003e205mm x 125mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 43.3333%; height: 27.625px;\"\u003eCurrency, covers\u003c\/td\u003e\n\u003ctd style=\"width: 12.4074%; height: 27.625px;\"\u003e10 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 32.5938px;\"\u003e\n\u003ctd style=\"width: 16.1111%; height: 32.5938px;\"\u003e\u003ca href=\"\/products\/archival-protective-currency-sleeves-wraparound\" title=\"archival protective currency sleeves\" rel=\"noopener\" target=\"_blank\"\u003eNo. 1290\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 27.037%; height: 32.5938px;\"\u003e10-5\/8\" x 6-1\/8\"\u003cbr\u003e(\u003cspan\u003e270mm x 157mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 43.3333%; height: 32.5938px;\"\u003eLarge currency, oversized covers\u003c\/td\u003e\n\u003ctd style=\"width: 12.4074%; height: 32.5938px;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e*Please measure your collectible and compare it to the listed dimensions before ordering. \u003c\/em\u003e\u003c\/p\u003e","brand":"SAFE","offers":[{"title":"No. 1291: 8\" x 4-7\/8\"","offer_id":48788800831731,"sku":"1291","price":8.95,"currency_code":"USD","in_stock":true},{"title":"No. 1290: 10-5\/8\" x 6-1\/8\"","offer_id":48788800864499,"sku":"1290","price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9750\/4755\/files\/1291_Transparent_Currency_Sleeve.webp?v=1775492949"},{"product_id":"postcard-sleeves-vintage-modern-protective-archival-sleeves","title":"Postcard Sleeves (Vintage \u0026 Modern) - Archival Protection","description":"\u003cp\u003eProtect and preserve your postcard collection with these medium-weight archival sleeves, designed specifically to fit both vintage and modern postcard formats. Available in sizes for vintage postcards and modern\/continental postcards, each sleeve offers a precise fit that helps guard against dust, fingerprints, bending, and everyday handling while keeping your postcards fully visible.\u003c\/p\u003e\n\u003cp\u003eChoose between top-opening or side-opening designs depending on your preferred storage method, whether you're organizing postcards in albums, boxes, or display systems. Made from durable, archival-grade material, these sleeves provide reliable, medium-weight protection without added bulk, making them ideal for long-term storage and display of vintage postcards, real photo postcards (RPPC), travel souvenirs, art cards, and photographic prints.\u003c\/p\u003e\n\u003ctable width=\"567\" style=\"height: 191.984px; width: 99.046%;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 20.5078px;\"\u003e\n\u003ctd style=\"width: 13.0973%; height: 20.5078px;\"\u003e\u003cstrong\u003e Item No. \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.0177%; height: 20.5078px;\"\u003e\u003cstrong\u003eExternal Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.3959%; height: 20.5078px;\"\u003e\u003cstrong\u003eUsed for...*\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.6041%; height: 20.5078px;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.8672px;\"\u003e\n\u003ctd style=\"width: 13.0973%; height: 40.8672px;\"\u003e\u003ca href=\"\/products\/postcard-sleeves-vintage-modern-protective-archival-sleeves\" title=\"postcard sleeves\" rel=\"noopener\" target=\"_blank\"\u003eNo. 9252\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.0177%; height: 40.8672px;\"\u003e5-7\/8\" x 4-1\/16\"\u003cbr\u003e(\u003cspan\u003e149mm x 103mm)\u003c\/span\u003e\u003cbr\u003eTop-opening\u003c\/td\u003e\n\u003ctd style=\"width: 46.3959%; height: 40.8672px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eVintage postcards, RPPC's, antique photos, small art prints\u003c\/td\u003e\n\u003ctd style=\"width: 13.6041%; height: 40.8672px;\"\u003e50 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.8672px;\"\u003e\n\u003ctd style=\"width: 13.0973%; height: 40.8672px;\"\u003e\u003ca href=\"\/products\/postcard-sleeves-vintage-modern-protective-archival-sleeves\" title=\"postcard sleeves\" rel=\"noopener\" target=\"_blank\"\u003eNo. 9250\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.0177%; height: 40.8672px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e5-7\/8\" x 4-1\/16\" \u003cbr\u003e(\u003cmeta charset=\"utf-8\"\u003e149mm x 103mm)\u003cbr\u003eSide-opening\u003c\/span\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 46.3959%; height: 40.8672px;\"\u003eVintage postcards, RPPC's, antique photos, small art prints\u003c\/td\u003e\n\u003ctd style=\"width: 13.6041%; height: 40.8672px;\"\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.8594px;\"\u003e\n\u003ctd style=\"width: 13.0973%; height: 48.8594px;\"\u003e\u003ca href=\"\/products\/postcard-sleeves-vintage-modern-protective-archival-sleeves\" title=\"postcard sleeves\"\u003eNo. 9264\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.0177%; height: 48.8594px;\"\u003e 6-1\/8\" x 4-1\/2\"\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e(157mm x 113mm)\u003c\/span\u003e\u003cbr\u003eTop-opening\u003c\/td\u003e\n\u003ctd style=\"width: 46.3959%; height: 48.8594px;\"\u003eModern postcards, 4x6 photos, travel souvenir postcards, photography prints \u003c\/td\u003e\n\u003ctd style=\"width: 13.6041%; height: 48.8594px;\"\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.8828px;\"\u003e\n\u003ctd style=\"width: 13.0973%; height: 40.8828px;\"\u003e\u003ca href=\"\/products\/postcard-sleeves-vintage-modern-protective-archival-sleeves\" title=\"postcard sleeves\" rel=\"noopener\" target=\"_blank\"\u003eNo. 9262\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.0177%; height: 40.8828px;\"\u003e6-1\/8\" x 4-1\/2\" \u003cbr\u003e(\u003cspan\u003e157mm x 113mm)\u003c\/span\u003e\u003cbr\u003eSide-opening\u003c\/td\u003e\n\u003ctd style=\"width: 46.3959%; height: 40.8828px;\"\u003eModern postcards, 4x6 photos, travel souvenir postcards, photography prints\u003c\/td\u003e\n\u003ctd style=\"width: 13.6041%; height: 40.8828px;\"\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e*Please measure your collectible and compare it to the listed dimensions before ordering.  \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eExplore our complete range of archival protective sleeves for postcards, photographs, and paper collectibles \u003ca href=\"\/collections\/postcard-sleeves\" title=\"postcard sleeves\" rel=\"noopener\" target=\"_blank\"\u003ehere\u003c\/a\u003e. \u003c\/p\u003e","brand":"SAFE","offers":[{"title":"No. 925X: Vintage Sleeve (5-7\/8\" x 4\") \/ Top-opening","offer_id":48793032458483,"sku":"9252","price":17.95,"currency_code":"USD","in_stock":true},{"title":"No. 925X: Vintage Sleeve (5-7\/8\" x 4\") \/ Side-opening","offer_id":48793032491251,"sku":"9250","price":17.95,"currency_code":"USD","in_stock":true},{"title":"No. 926X: Modern \/ Continental Sleeve (6-5\/8\" x 4-1\/4\") \/ Top-opening","offer_id":48793034162419,"sku":"9264","price":17.95,"currency_code":"USD","in_stock":true},{"title":"No. 926X: Modern \/ Continental Sleeve (6-5\/8\" x 4-1\/4\") \/ Side-opening","offer_id":48793034129651,"sku":"9262","price":17.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9750\/4755\/files\/9252.webp?v=1775224176"},{"product_id":"oversized-archival-protective-sleeves-top-opening-pack-of-10","title":"Oversized Archival Protective Sleeves, Top-Opening - Pack of 10","description":"\u003cp\u003eOversized collectibles deserve the same archival care as the rest of your collection — and these Medium-Weight Top-Load Sleeves deliver it at scale. Crafted from a dimensionally stable, plasticizer-free polyester film, they're completely free of stearates, chemical plasticizers, and PVC, so there's no off-gassing and no chemical migration to worry about over the long term. Just clean, inert protection for the pieces you value most.\u003c\/p\u003e\n\u003cp\u003eAt 0.1mm thickness, the film holds enough rigidity to keep large, flat items — comic books, press sheets, maps, posters, blueprints, and historical documents — lying flat and fully supported without adding bulky stiffness. Closed on three sides with a top-open entry, they're built for pieces you'll want to revisit occasionally, with controlled access that keeps contents from sliding out unexpectedly. Since both the face and reverse stay fully visible, you can catalog, display, or simply admire your archival documents and oversized ephemera without ever removing them from their sleeve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOpening: Top open (long side)\u003c\/li\u003e\n\u003cli\u003eFilm thickness: \u003cmeta charset=\"utf-8\"\u003e0.1mm (medium-weight)\u003c\/li\u003e\n\u003cli\u003eDimensions: Various - listed below\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable width=\"100%\" style=\"width: 100.087%; height: 227.594px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"width: 13.31%; height: 10px;\"\u003e\u003cstrong\u003eItem No. \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.2697%; height: 10px;\"\u003e\u003cstrong\u003eExternal Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.7637%; height: 10px;\"\u003e\u003cstrong\u003eUsed for...*\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 12.6058%; height: 10px;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"width: 13.31%; height: 58.7812px;\"\u003eNo. 9292\u003c\/td\u003e\n\u003ctd style=\"width: 26.2697%; height: 58.7812px;\"\u003e12-1\/4\" x 8-5\/8\"\u003cbr\u003e(310mm x 220mm)\u003c\/td\u003e\n\u003ctd style=\"width: 46.7637%; height: 58.7812px;\"\u003eDIN A4, comic books, magazines, graphic novels, sheet music, large certificates\u003c\/td\u003e\n\u003ctd style=\"width: 12.6058%; height: 58.7812px;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 80.4375px;\"\u003e\n\u003ctd style=\"width: 13.31%; height: 80.4375px;\"\u003eNo. 9294\u003c\/td\u003e\n\u003ctd style=\"width: 26.2697%; height: 80.4375px;\"\u003e17-1\/8\" x 12-1\/4\"\u003cbr\u003e(435mm x 310mm)\u003c\/td\u003e\n\u003ctd style=\"width: 46.7637%; height: 80.4375px;\"\u003eDIN A3, historical documents, ephemera, maps, newspapers, art prints, certificates, blueprints, posters\u003c\/td\u003e\n\u003ctd style=\"width: 12.6058%; height: 80.4375px;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 78.375px;\"\u003e\n\u003ctd style=\"width: 13.31%; height: 78.375px;\"\u003eNo. 9296\u003c\/td\u003e\n\u003ctd style=\"width: 26.2697%; height: 78.375px;\"\u003e24-3\/8\" x 17-1\/8\"\u003cbr\u003e(620mm x 435mm)\u003c\/td\u003e\n\u003ctd style=\"width: 46.7637%; height: 78.375px;\"\u003eDIN A2, U.S. Press Sheet (XL), oversized posters, large maps, newspapers, oversized art prints, archival documents\u003c\/td\u003e\n\u003ctd style=\"width: 12.6058%; height: 78.375px;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e*Please measure your collectible and compare it to the listed dimensions before ordering. \u003c\/em\u003e\u003c\/p\u003e","brand":"SAFE","offers":[{"title":"No. 9292: 12-1\/4\" x 8-5\/8\"","offer_id":49836297912563,"sku":"9292","price":19.95,"currency_code":"USD","in_stock":true},{"title":"No. 9294: 17-1\/8\" x 12-5\/16\"","offer_id":49836297945331,"sku":"9294","price":39.95,"currency_code":"USD","in_stock":true},{"title":"No. 9296: 24-3\/8\" x 17-1\/8\"","offer_id":49836297978099,"sku":"9296","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9750\/4755\/files\/748_Heavyweight_Cover_Sleeves.jpg?v=1775492778"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9750\/4755\/collections\/7741.webp?v=1776559283","url":"https:\/\/www.safepub.com\/collections\/postcard-sleeves.oembed","provider":"SAFE® Collecting Supplies","version":"1.0","type":"link"}