GHANA 1963 (VARIETY) 6D FIRE-CROWNED BISHOP AEROGRAMME, RED SHIFT
6d Fire-Crowned Bishop aerogramme, 'IMPERIAL AIR MAIL' inverted watermark, third issue featuring simulated perfs and address line away from stamp image, with dramatic up shift of red resulting in the double bird variety. Striking. Minor foxing otherwise fine, unfolded and unused. AG7Ac
Note: normally issued with watermark comprising an uppercase letter identifying the year of paper manufacture and a castle between the words 'IMPERIAL AIR MAIL'. The usual year of manufacture being 1962 (watermark letter 'S'). However, examples have been recorded with letters 'P' (1961), 'T' (1963), 'V' (1964), 'Y' (1965), and 'Z' (1966). Examples also exist with no watermark at all
