They are now the most highly prized American coins in existence, and values as high as $100,000 have been placed on a single Brasher doubloon. Brasher also struck a half-doubloon by using his doubloon die with a planchet (metal blank) of reduced size. A specimen of the Brasher half-doubloon is now in the Smithsonian Institution’s massive numismatic collection. The Brasher gold pieces were never recognized or authorized by any government body, but from their appearance it is evident that they might well have influenced the subsequent excellent design of America’s first official gold coinage. After the United States made good her independence, much debate and study were expended on the problem of establishing an efficient monetary system for the new nation, but it was not until 1792 that an act was passed establishing the first U.S. mint at Philadelphia. A further act of 1792 made the dollar the monetary unit of the U.S. and authorized the minting of the following coinage:
ORIGINAL U.S. COINAGE AS ESTABLISHED IN 1792 Grains Grains Coin Value Pure Standard Gold Eagle $10.00 247.50 270. Gold Half Eagle 5.00 123.75 135. Gold Quarter Eagle 2.50 61.875 67.5 Silver Dollar 1.00 371.25 416. Silver Half Dollar .50 185.625 208. Silver Quarter Dollar .25 92.8125 104. Silver Disme (Dime) .10 37.125 41.6 Silver Half Disme .05 18.5625 20.8 Copper Cent .01 11 dwt. Copper Half Cent .005 5.5 dwt. Notes: I. Pure means the unalloyed metal. 2. Standard is the total weight of coin.