The Royal Dragon by R. L Hewitt – the story of Bluebottle which was given to the Duke of Edinburgh by the Island Sailing Club of Cowes on his marriage to HRH Princess Elizabeth in 1947. Bluebottle visited Canada in the 50s and raced at some of the Canadian Yacht Clubs. The book is out of print but you can find it via some used book search sites – try searching for “Used Books”