I have 2001 Proof Silver Eagles....all of them were ordered from the U.S. Mint in 2001 and most of the coins are still in their original U.S. Postal Service Priority Mail boxes (unopened). Is there a difference in sale price/value between the coins in the unopened boxes vs. those in the boxes that I opened? And would anyone be interested in buying or trading for some/all of these coins? Thank you!
