1838 and 1839 $10 Gold Eagle Proof Liberty Head Coin
1839 $10 Gold Eagle Proof Liberty Head coin is known for its extremely low mintage, as the Mint produced only four coins. Three of these coins are known to be in existence today. A die from 1838 was used in the creation of this 1839 Proof Liberty coin.
1861 Liberty Head Gold Double Eagle $20 Coin
The US Mint started producing $20 gold double eagle coins in the year 1850. James Barton Longacre designed this coin with the help of Peter F. Cross. Anthony C. Paquet made an attempt to improve this design. The modified version had taller and narrower letters.