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One of the tiles is embossed with a price.
This was a natural shape modification of the Russian Pyraminx. There's a very similar modification produced in Riga with slightly different outer shape called "Kristall" (Crystal).
Like the Russian Pyraminx this puzzle was produced by several factories around USSR. The "Original price" is based on the official exchange rate (0.6 rubels per dollar) although in socialist time this was completely theoretical. The price (in rubels) was visible directly on the puzzle through the single embossed tile.
If you're looking to buy, eBay is the one place you can find almost anything... if you're willing to wait for it, then pay the price!
Thank you to the following people for their assistance in helping collect the information on this page: Carter, Aleksey Baulin. If you have any information or images that you would like to contribute to this entry, please click the apropriate add () or edit () icon above, or use the following links to modify this item, add a recent sale price or to add a new link.