unused Block of Four -- perf. 13x11¾ 1/- black and yellowish brown block of four, one showing mountain retouch, fine mint. Rare. S.G. 145ac, £800+. Photo
unused Block of Four -- perf. 13x11¾ 1/- black and yellowish brown block of four, one showing mountain retouch, fine mint. Rare. S.G. 145ac, £800+. Photo
unused Block of Four -- perf. 13x11¾ 1/- black and yellowish brown block of four, one showing mountain retouch, fine mint. Rare. S.G. 145ac, £800+. Photo
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