Estados Unidos 5-Piece Certified 14th International Numismatic Convention silver Medal Proof Set 1988 PCGS, 1) 1/10 oz. - PR67 Deep Cameo 2) 1/4 oz. - PR68 Deep Cameo 3) 1/2 oz. - PR67 Deep Cameo 4) Onza (1 oz.) - PR67 Deep Cameo 5) 12 oz. - PR65 Deep Cameo All struck at the Mexico City mint. Quite scarce as a set and each piece highly attractive and in gem condition.

HID99912102018