Read this tip to make your life smarter, better, faster and wiser. LifeTips is the place to go when you need to know about Proof Sets and other Coin Collecting topics.
If you purchased Proof Mint Sets from 1999, 2000, or 2001, you may be in for a refund from the US Mint. The US Mint held back 150,000 Proof Mint Sets and planned to offer them on a scheduled basis for collectors. However, a number of these sets showed spotting and tarnishing, which the US Mint blamed on improper storage.