Most promissory notes looked like paper currency, but scrip was also printed on leather, metal, fish-skin parchment and, in Tenino, Wash., on slabs of two-ply Sitka Spruce.

• 大多数作为借据的代币看起来都很像纸钞，但也有印在皮革、金属和仿羊皮纸上的，在华盛顿州的Tenino，借条居然印在西特加(SitkaSpruce)杉木胶合板上。