unused Block of Four (1d.) deep blue top right corner block of four with large part original gum; the upper pair crossed by diagonal crease. Sc. 3a; S.G. 4, £600

細節
unused Block of Four (1d.) deep blue top right corner block of four with large part original gum; the upper pair crossed by diagonal crease. Sc. 3a; S.G. 4, £600