This 2004 Occasions 1 Crown coin cover is a first day cover issued by Mercury Covers. It celebrates the art of letter writing and hosts a Isle of Man one crown coin and Royal Mail stamps. The brilliant uncirculated coin features Lazlo Biro the Father of the Ball Point Pen and the stamps illustrate letter envelopes. Postmark cancelled Occasions 2004 Letterbox Lane Sevenoaks Kent 3rd February 2004.