China
People's Republic gold Proof "Zurich International Expo" Panda 1 Ounce Medal 1990 PR68 Deep Cameo PCGS, KMX-MB65, PAN-139A. Mintage: 550. Stunningly produced with the arms of Zurich on one side and a panda and cub on the other. Given its minuscule mintage, a piece that is sure to be highly sought by the Panda series specialist.
Estimate: 3500-4500 USD