Edward VIII sovereign coin is one of the rarest and most collectible coins in the world, featuring Britain's King Edward VIII, who abdicated in Dec 1936 in order to marry American divorcee Wallis Simpson. Only 6 coins were prepared as part of a trial set when Edward became king in Jan 1936, made from 22-carat gold, slightly smaller and lighter than a modern pound coin and were never released to the public.The coin was originally prepared for striking in early 1937The Edward VIII sovereign coin becomes the most expensive British coin ever!