12 What's the difference between the signed version and the unsigned version of Panda Silver Coin?

There is ○ P on the signed version, but not on the unsigned version. 20 12 Panda Gold and Silver Commemorative Coin is a set of precious metal commemorative coins issued by the People's Bank of China on120165438+on October 30th to commemorate the 30th anniversary of the issuance of Panda Gold Coins in China.