9 most valuable U.S. coins
3. Brasher doubloon (EB on breast)
The coin was produced by New York goldsmith Ephraim Brasher (hence the EB stamp on the reverse side). It's not certain, however, why Brasher came out with this private issue. Some believe the coin, which was not U.S. currency, was intended to be used for bribes. Others say Brasher produced the doubloon to sell to visitors who called on George Washington, who lived next door to the goldsmith in Manhattan in the 'first White House.' The coin was originally worth $16.
The Brasher doubloon is central to the plot of Raymond Chandler's 'The High Window.' One of the rare coins was found by workers in a Philadelphia sewer in 1897. The doubloon was later purchased by William Randolph Hearst.