China
People's Republic silver Panda Proof 5oz Medal 1987 PR69 Ultra Cameo NGC, KM-XMB13, Pan-66a, Cheng pg. 46, # 3, issued for the 1987 Long Beach Numismatic & Philatelic Exposition. Mintage of 2,000 pieces. A bit more elusive than the mintage might suggest.
Estimate: 450-550 USD