GREAT BRITAIN 1996 (FDC) £1.50 CAERNARFON CASTLE
£1.50 Caernarfon Castle imprint/plate 4P block x 4, printed from re-etched plates by Harrison on non-fluorescent paper with PVA gum, on illustrated cover with WINDSOR PHILATELIC COUNTER special hand stamp dated 5 MAR '96, the first day of issue at philatelic counters. Superb. SG1612var; SGUK9; SC1446var; BC1134a
Note: PVA gum is white (compared to PVAD which is distinctly off-white) and can be verified as the margin isn't stuck down
