Tupperware® ran a very successful advertising campaign "Put a
Lock on Freshness" in the 1960's. These ads were a variation, "Lock
in Freshness" and ran in women's magazines in the 1970 and later.
have been collecting these for years. I get them from Magazines I find
at Flea Markets, Antique Shops, Garage Sales and eBay.
see larger views, click on any image.
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