GREAT BRITAIN: (1952- PRESENT DAY)- The Princess Charlotte of Cambridge Solid Silver Proof Commemorative Collection. Princess Charlotte was born 8.34am on Saturday 2nd May 2015 at the Lindo Wing of St Mary's Hospital in Paddington. The first daughter of the Duke and Duchess of Cambridge and the younger sister of His Royal Highness Prince George . The Jubilee Mint produced this commemorative Solid Silver 3-coin set to celebrate this special ocassion. Struck 925/1000 sterling Silver the set consists of a 10g, 14.5g and 28.28g and was limited to just 199 sets.