Shekel Ring (3.5e Equipment)
From D&D Wiki
The shekel ring is a small golden band worth 1 silver piece. It can be worn, and is common currency among the deeka.
In order to confirm its worth, these rings are marked with minting marks on the inside and out. Wearing a few is common practice instead of carrying a coin pouch for daily purchases, however, wearing too many is considered poor taste in fashion. Each finger (including the thumb) can easily wear two shekel rings. A hand can fashionably carry a single gold piece worth of gold (or twice that if need be).