This 1999 Isle of Man Millennium 2000 1 crown coin cover is a IOM first day cover by Mercury. It celebrates the new millennium of 2000 and hosts a Isle of Man 1 crown coin and stamps. The brilliant uncirculated coin, the 2000 Manx Crown, features the letters M for Millennium and the stamps show constellation in the sky at night. The cover carries a triple postmark: 31st December 1999, Midnight 1999-2000 and 1st January 2000 First Day of Issue Douglas Isle of Man.