However, since grading is subjective and just an opinion, we do not guarantee that coins to which we assign grades would be graded the same by PCGS, NGC, ANACS, or ICG. Many items that are sealed add a premium to the value of the item, once the seal is broken the value is lost!
Vintage coins may show some effects of aging and packaging may have some minimal wear and tear. You may be interested in. The item "Lot of (10) 1960 SILVER US Mint Proof Sets, SEALED Sets from BIG HOARD UNOPENED" is in sale since Thursday, May 23, 2019. This item is in the category "Coins & Paper Money\Coins\ US\Proof Sets".
The seller is "euclide" and is located in Springfield, Massachusetts. This item can be shipped to United States.