Enjoy the collection of 殷国清.
Here are the pictures of two pattern Cu-Ni coins (1985 Xinjiang and Tibet 1 Yuan) and 2010 Shanghai Expo. 1 kg gold medal copied from his museum (the second website given in my first posting in this thread). The 1985 Xinjiang pattern coin has a mintage of 1. The mintage of 1985 Tibet pattern coin is unknown, but it is believed to be in single digit. The 2010 Shanghai Expo. 1 Kg gold medal has a mintage of 30.