What This Coin Looks Like (Obverse, Reverse, Mint Mark Location, Special Features, etc.): One of the greatest errors of this series is the 2007 W Proof "Frosted FREEDOM" variety of the 1/2 oz $50 American Platinum Eagle. In the standard proof coins: The word "FREEDOM" on the banner on the reverse of the coin is supposed to have a mirror-like reflective surface within the letters themselves. In the "Frosted FREEDOM" variety - these words are unfinished and so they appear to have a frosty satin finish found throughout the rest of the design. This variety wasn't even discovered until 2011 - yet these coins are extremely rare and extremely valuable. According to the US Mint: Only 21 of these coins are known to exist - and the quarter ounce and one ounce platinum eagles also have a "Frosted Freedom" variety with a count of 21 and 12 as well.
The difference between the Normal Proof vs Frosted Freedom Proof is depicted below in the example comparison image of the coins. Note the letters in the word "FREEDOM":
Coin Value Chart: Typical Coin Prices, Values and Worth in USD based on Grade/Condition. Numismatic portion of the values last updated February 2026, precious metal portion of the values is updated live!