billfold n. A small, thin, flat container, usually made of leather or imitation leather, having a pocket of a size just large enough to hold paper currency and folded over once to fit in the pocket of one's clothing; it is a type of wallet, but having fewer compartments than the typical wallet.
... Candron, taking a billfold from his inside coat pocket. "Such is the law, and the law of the People of China is to be ... — What The Left Hand Was Doing • Gordon Randall Garrett
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