GREAT BRITAIN 1973 (VARIETY) 20P OLIVE-GREEN PAIR WITH PERF SHIFT
20p Olive-Green pair, Bradbury's paper, with dramatic perforation shift. Scarce. Fresh and fine. Mint never hinged. SG830var; SGUC7var
Note: Post Office paper was originally used before the introduction of whiter Bradbury's paper from 30 November 1973
