2015 1 oz. Smithsonian Bao Bao Panda Silver Proof from the China Mint. Approved and licensed by the Smithsonian institution. The obverse features the Great Wall of China and the Smithsonian Castle. The reverse features Bao Bao, the baby giant panda currently residing at the Smithsonian Zoo. Each proof comes complete with a mint display box and an individually numbered certificate of authenticity. Proofs are certified and graded by NCG.