>I think there is an old African board game, Mancala, which is played
>with cowry shells (or seeds or pebbles).

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...

Peggy

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