Click to expand Tap to zoom 1988 US Mint Clad Proof Set Gem Coins w/ Box $13.15 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. 1988-S US Mint Clad Proof Set. These Beautiful GEM Proof Coins Come in the Original Box. _gsrx_vers_841 (GS 7.0.16 (841))