{"product_id":"1940s-1960s-canadian-social-insurance-number-holder-envelope","title":"Canadian Social Insurance Number Holder Envelope — Vintage 1940s–1960s","description":"\u003ch2\u003eA Tangible Piece of Canadian Social History\u003c\/h2\u003e\u003cp\u003eLong before plastic cards and digital records, Canadians carried their Social Insurance Number in a simple, dignified paper envelope just like this one. This \u003cstrong\u003eoriginal Canadian Social Insurance Number (SIN) holder envelope\u003c\/strong\u003e, dating from the \u003cstrong\u003e1940s to 1960s\u003c\/strong\u003e, is a rare and evocative artifact from the early decades of Canada's national social welfare system — a quiet witness to the lives of working Canadians in the postwar era.\u003c\/p\u003e\u003ch2\u003eAbout This Piece\u003c\/h2\u003e\u003cp\u003eImagine it tucked into a wallet or a kitchen drawer, carefully preserved by someone who understood its importance. The SIN system was introduced in Canada in 1964, but predecessor programs and related documentation envelopes circulated through the mid-20th century as the federal government expanded its social programs. This envelope represents that transitional moment in Canadian bureaucratic and social history.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e 1940s–1960s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Canada\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Good vintage condition — age-appropriate wear, intact structure\u003c\/li\u003e\n\u003cli\u003ePrinted government-issue paper stock typical of the period\u003c\/li\u003e\n\u003cli\u003eA wonderful addition to any Canadian ephemera or social history collection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFor Collectors of Canadian Ephemera\u003c\/h2\u003e\u003cp\u003eThis piece appeals to collectors of \u003cstrong\u003eCanadian paper ephemera, government documents, postal history, and mid-century Canadiana\u003c\/strong\u003e. It pairs beautifully with vintage SIN cards, ration books, war savings certificates, and other postwar Canadian social documents. Display it in a frame, a shadow box, or alongside a curated collection of 20th-century Canadian memorabilia.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eAll vintage paper items are sold as found. Please review photos carefully. Final sale.\u003c\/em\u003e\u003c\/p\u003e","brand":"Portage MCC","offers":[{"title":"Default Title","offer_id":47367227277565,"sku":"Storefront Pegboard\/Cabinet 4 - 3","price":7.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0512\/9597\/7651\/files\/Scan_20260410_3.png?v=1775853046","url":"https:\/\/portagemcc.com\/products\/1940s-1960s-canadian-social-insurance-number-holder-envelope","provider":"Portage MCC","version":"1.0","type":"link"}