Thanks for looking.
Don't know anything about these. I suspect they are Japanese Menko cards, but don't know. One uncut sheet (no perforations) of 8 unique cards. Sheet meaures 10.5 by 3.5 inches. Used a Canadian cousin of Leon's quarter for reference

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Can anyone tell me the age of these. Are they from a game perhaps. Loo great but is there any value at all? Sorry about the blurry pics. Printing is sharp on these.
Thanks?