Welcome To Cambridgeshire Coins. With over 20 years in the Coin business your are in safe hands. Please see our other coins and coin accessories for sale. Weight: 31.135 Grams / Diameter: 45.60mm. Issue Limit: 5,000 Worldwide. Presented: Original Perth Mint Box with it’s Certificate of Authenticity. 999 Silver weighing one ounce of pure Silver. The reverse design depicts the Lunar Mouse with bamboo, signifying good health, wisdom and prosperity while the obverse has the stunning portrait of Her Majesty Queen Elizabeth II by Ian Rank Broadley. These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.