The legal tender of the U.S. or of any foreign country, or any counterfeit thereof. 18 USC

Gold, silver, and some other less precious metals, in the progress of civilization and commerce, have become the common standards of value; in order to avoid the delay and inconvenience of regulating their weight and quality whenever passed, the governments of the civilized world have caused them to be manufactured in certain portions, and marked with a Stamp which attests their value; this is called money.For many purposes, bank notes, a check, and negotiable notes will be so considered. To support a count for money had and received, the receipt by the defendant of bank notes, promissory notes, credit in account, in the books of a third person, or any chattel, is sufficient and will be treated as money.The Constitution of the United States has vested in congress the power "to coin money, and regulate the value thereof." Art. I, s. 8.