What system of values is the U.S dollar based upon?
decimal system
What is the value of an eagle in the U.S monetary system?
ten dollars
In circulating for what are denominations less than a dollar issued as?
cents
When was the coin known as the double eagle discontinued?
1930s
What are mils sometimes used for?
tax levies
Has any $100 dollar coin knows as the Union ever been issued?
unknown
Who suggested  creating $100, $50, $25 gold coins in 1954?
James Guthrie in 1854
What is the value of a Dime coin?
10¢
What is paper currency less than one dollar sometimes called?
fractional currency
Are the Union and the mill known well to the general public?
no