Mongolia
People's Republic Three-Piece gold & silver Proof Conservation Set 1976, 1) 25 Tugrik - Arfali Sheep, KM36, PR68 Ultra Cameo NGC2) 50 Tugrik - Bactrian Camel, KM37, PR69 Ultra Cameo NGC3) 750 Tugrik - Przewalski Horses, KM38, PR70 Ultra Cameo NGCThe gold 750 Tugrik is currently tied with only one other example at this highest possible certified grade.
Estimate: 2200-2600 USD