Supposedly, an old Spanish silver mine was the source of the legendary "Yokum Dollars" of the Ozarks. The four Yokum brothers (no relation to Lil Abner) of southern Missouri (near present "Silver Dollar City"/Branson) had discovered an old Spanish mine with stacks of silver bars inside. When the Bank of Saint Louis failed around 1817, and the subsequent Panic of 1819, paper money was worthless - at least no one would accept it. The Yokums began producing dollar coins of the Spanish silver to allow the locals to engage in commerce. The story goes that "guvmint men" from Washington came to inspect/confiscate the coins and verified that they were, in fact of GREATER purity (94% silver) than official US currency (90%). The supposed site of the Spanish mine is suspected to be covered by Table Rock Lake, now. Although several "example"/specimens alluding to be Yokum dollars are extant, none has ever been verified as "authentic"...but without an original, by what standard are they judged? Whether or not the Dollars, or the mine, ever existed cannot be proven or disproven.