2015 Sir Winston Churchill £20 Fine Silver BU Coin - Collectible UK Royal Mint:  15.71g, 27mm diameter, Obverse Designer - Ian Rank-Broadley FRBS; Reverse Designer - Etienne Millner.  Brilliant Uncirculated, interesting toning on Reverse - turning a plum shade!  The Obverse, when you are the owner of the coin, may or may not look like Gorbachev in certain lighting conditions.  I am going to miss this little fella!