GREAT BRITAIN 1969 (MNH) FIRST FLIGHT OF CONCORDE CYLINDER BLOCKS
First Flight of Concorde lower right cylinder corner blocks x 6 (3 items): 4d (1A–1B–1C–1D–1E), 9d (2A–1B–1C–1D), 1s 6d (1A–1B–3C). Fresh and fine. Mint never hinged. SG784-786; SC581-583
