China
People's Republic Four-Piece "Lake Placid Winter Olympics" Proof Piefort 30 Yuan Set 1980, 1) Speed Skating - PR67 NGC, KM-P152) Alpine Skiing - PR67 NGC, KM-P163) Biathlon - PR67 NGC, KM-P174) Figure Skating - PR68 NGC, KM-P18All coins are fully brilliant-white, with bold strike and no significant flaws. This lot also comes with the original case and COA for each coin.
Estimate: 3500-4500 USD