The Isle of Man has been the home of the Tourist Trophy (TT) races since 1907. In 1997 they issued the first of a series of Crown denominated coins that featured some of the superstars of past races. They have continued the series by issuing two new crowns in 2005. Since some of the earlier issues have been sold out for some time, it would be a good idea to acquire the coins you want before they are gone.