Obsolete currency (also known as copyright or damaged copyright) was issued by banks in the antebellum and Civil War era from your 1780s by 1866 in the United States. Presumably backed by gold, this currency was made use of regionally to simplify commerce for transactions necessitating gold coins. https://elliottepwan.uzblog.net/the-basic-principles-of-fake-us-trade-dollars-47162175