U.S. Proof Coin Sets
2007 Presidential Collection
A new series of $1.00 coins honoring the U.S. Presidents began in 2007. The U.S. Mint is issuing these coins in the order that the presidents served the United States. Four coins per year will be struck in proof condition. The obverse side of the coin will feature the presidents portrait, while the reverse shares the same common image, the Statue of Liberty. The first coins to be minted have been George Washington, John Adams, Thomas Jefferson, and James Madison. These coins also feature edge-incused inscriptions of the year, E Pluribus Unum, In God We Trust, and the mint mark.
Proof coins are produced when two dies strike a blank piece of metal with tremendous force. One die is engraved with the front (obverse) design for the coin, while the other die has the back (reverse) design. A proof coin is made with a specially treated die. Through this process, it gives the coin a different appearance. Modern technology allows the high points on the coin design to be acid treated. The background (or field) design of the coin die is polished, resulting in a mirror-like look on the coin when it is struck. The raised parts of the coin have a frosted-look to them. This contrasting finish is often called "cameo." On some older coins a cameo appearance is quite rare. When the attribute "CAM" is added to a coins description, it means cameo appearance. "DCAM" means deep cameo and indicates that this special appearance is strong and easy to observe.
Composition: 77% Copper, 12% Zinc, 7% Manganese, 4% Nickel
U.S. Proof Coin Sets 2007 Presidential Collection are sold with four coins in the original U.S. Government protective plastic packaging.
U.S. Proof Coin Sets: 2007 Presidential Collection