Isle of Man, Elizabeth II, 150th Anniversary of the "Penny Black" Stamp, Proof Silver 1 Crown, 1990, Obv: crowned bust of the queen facing right, the lettering "ELIZABETH II-ISLE OF MAN 1990" around the field, Rev: the design from the penny Black 1 Penny postage and the lettering "PENNY BLACK 150th ANNIVERSARY CROWN" around the field, 28.34g, 38.59mm, (KM # 267), proof, Scarce.