China
People's Republic 3-Piece Certified "Lake Placid Winter Olympics" Proof Piefort 30 Yuan Partial Set 1980,
1) Speed Skating - PR65 Deep Cameo PCGS, KM-P15
2) Alpine Skiing - PR67 Cameo NGC, KM-P16
3) Biathlon - PR67 Ultra Cameo NGC, KM-P17
A lightly handled trio in double thickness, short the Figure Skating issue from a complete set.
HID02901242017
Estimate: 4000-5000 USD