Watch List notes:

China (People's Republic), platinum proof 25 yuan (1/4 oz) Panda, 1990, NGC PF 69 Ultra Cameo. KM-278; PAN-134A. Anthony: "the only 1/4 oz. platinum Panda from the China Mint," its design unique, with only eight higher at PF 70 in the current NGC census. Mintage: 3,500 (planned; actual and surviving unknown but certainly much less due to meltage in the 1990s). Pedigreed to the Gansu Collection of Chinese Panda Coinage.

Estimate: $400 - $600