China
People's Republic "Lake Placid Winter Olympics" Proof 30 Yuan Pair 1980,
1) Alpine Skiing - PR68 Deep Cameo PCGS, KM-P16
2) Biathlon - PR64 Deep Cameo PCGS, KM-P17
An attractive pair, the first especially highly certified.
HID02901242017
Estimate: 1800-2500 USD