The United States Mint on Monday, December 13, 2010, announced that it is discontinuing the satin finish on numismatic uncirculated coins produced for the United States Mint Uncirculated Coin Set® and other products.
Instead, beginning in 2011, uncirculated-quality coins will feature a brilliant finish.
The United States Mint began using the satin finish for its uncirculated coins in 2005 to be consistent with other products in its portfolio, such as commemorative coins. The satin finish, however, highlights surface marks that inherently result from the coin-handling systems.
Although the United States Mint modified the process to improve the coin appearance, there is no cost-effective way to completely eliminate the coin-on-coin contact that causes surface nicks.
As a result, the United States Mint will revert back to the brilliant finish used on uncirculated coins prior to 2005. This change will result in more aesthetically pleasing coins with a finish that does not highlight surface flaws. It will only be featured on uncirculated-quality one-cent, 5-cent, dime, quarter-dollar, half-dollar and dollar coins.
About US Mint
The United States Mint, created by Congress in 1792, is the Nation’s sole manufacturer of legal tender coinage and is responsible for producing an adequate volume of circulating coinage for the Nation to conduct its trade and commerce. The United States Mint also produces proof, uncirculated and commemorative coins; Congressional Gold Medals; and silver, gold and platinum bullion coins.