GREAT BRITAIN 1969 (VARIETY) 4D CHRISTMAS CYLINDER BLOCK WITH DOUBLE PERFS
4d Christmas cylinder 1A–1B–2C–1D–1E–2F–1G–1H block x 6, wide central phosphor band, with double strike of perforations affecting lower two rows. Unusual and scarce. Generally fine. Mint never hinged. SG812var; SC605var
