1998 Nagano Winter Olympics 6 Coin Proof Set. 3 Sets total 6 coins – (One set is missing the COA) Each 2 coin set has 1 15g Silver 0.925 & 1 Copper-Nickel Coin. Item in photos is the actual item you will receive, except when “STOCK PHOTOS” is noted above. We use Flat Rate mailing supplies as much as possible. Coins removed from their packaging are non returnable.