2021 Silver Eagle Reverse Proof Designer Set (w/Box & CoA). The stunning two-coin silver reverse proof designer edition set contains two American Silver Eagle One Ounce Coins. One coin is Type-1 with W mint mark (West Point) and the other is Type-2 with S mint mark (San Francisco). Both coins are flawless pristine proof condition. Both coins have reverse proof finish. Each coin contains one troy ounce of.