China
People's Republic Four-Piece Proof Piefort "Lake Placid Winter Olympics" 30 Yuan Set 1980, 1) Speed Skating - PR68 Deep Cameo PCGS, KM-P152) Alpine Skiing - PR68 Deep Cameo PCGS, KM-P163) Biathlon - PR69 Deep Cameo PCGS, KM-P174) Figure Skating - PR63 Cameo PCGS, KM-P18An attractive set overall with the figure skating issue being the weakest piece, with cloudy surfaces and evidence of mild handling.
Estimate: 4500-5000 USD