>>I have a piece of a Japanese game sort of like "Concentration". Bivalve
>>shells have illustrations inside, the matching valves with matching
>>pictures. You turn them over and try to match them. The shell is a venerid,
>>probably a Macrocallista or such...
>
>The game is called 'Kai-awase' or 'match the shell'; it dates from at least
>the 10th century, and the shells are usually Mactra chinensis. Antique sets
>in their distinctive drum-on-legs carrying containers are fine things to
>examine.

Thanks for that info. It makes my shell even more interesting to me.

Peggy

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