Proof Block of Four  -- Harrison 10/- green and ultramarine perf. 14 plate proof block of four on unwatermarked ungummed paper; straight-edge at top, fine. Extremely rare. Photo
VAT rate of 5% is payable on hammer price plus bu… Read more
Proof Block of Four -- Harrison 10/- green and ultramarine perf. 14 plate proof block of four on unwatermarked ungummed paper; straight-edge at top, fine. Extremely rare. Photo

Details
Proof Block of Four -- Harrison 10/- green and ultramarine perf. 14 plate proof block of four on unwatermarked ungummed paper; straight-edge at top, fine. Extremely rare. Photo
Special notice
VAT rate of 5% is payable on hammer price plus buyer's premium.