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Never buy a bad gram again. (date unknown, suspected 1970s) (media.piefed.ca)
submitted 1 month ago by to c/vintageads@sh.itjust.works
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Get one of these babies for less than the price of 2 grams!

These were sold in the 70s and 80s, and still show up on auction sites. Here's a photo of a real one.

Hot Box

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[–] 5 points 1 month ago (1 child)

What is it?

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  • [–] [S] 15 points 1 month ago

    According to one of the auction house listings I encountered, it tests the purity of... you know... powdered substances ... by measuring the melting points of various ingredients.

    So that you can make sure your all purpose baking flour is pure, I assume.

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