GREAT BRITAIN 1972 (FDC) £1 BLUISH BLACK, WINDSOR CASTLE
£1 Bluish Black redrawn high value Machin definitive on Philart cover with WINDSOR CASTLE, WINDSOR, BERKS special cancel dated 6 DE 72, the first day of issue. Very scarce. Generally fresh and fine. SG831b; SGUC12; SCMH168
