The common measure of value is _Money_.
It is also called Currency, and is of two kinds, viz.: coin and paper
money.
Stamped pieces of metal having a value fixed by law are _Coin_ or
_Specie_.
Notes and bills issued by the government and banks, and authorized to be
used as money, are _Paper Money_.
All moneys which, if offered, legally satisfy a debt are a _Legal
Tender_.