Isle of Man. 1977, Queen Elizabeth II Silver Jubilee Silver Proof Crown.  25th Anniversary of the coronation of Elizabeth II.   Sterling silver.  38.61mm. ; 28.28 grams.   Obverse: Portrait of Elizabeth II in tiara, right; ISLE OF MAN ELIZABETH II.  Reverse: Triskeles in center of three crowns; 1952 · SILVER JUBILEE · 1977 · ONE CROWN ·.  Struck by the Pobjoy Mint, Surrey.  Condition: UNCIRCULATED.  Comes in plastic capsule in original case of issue with certificate of issue.