@KoenSwinkels Yap stones are rocks carved to look like shell beads. So they are modeled on prior ornamental + monetary collectibles.
@KoenSwinkels Also folks should realize that Yap stones were an odd and unique exception -- shell beads worn on person was general rule.
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@KoenSwinkels Those who yap about Yap stones as their main or only example of primitive money, demonstrate their lack of knowledge of same.Thanks. Twitter will use this to make your timeline better. UndoUndo
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