(R10/4), fine mint. Rare, only 35 examples possible. S.G. 22/a, £694+. Photo" /> unused Block of Four -- perf. 14x14½ 3d. chocolate, a block of four with sheet margin at foot, the lower right stamp showing variety no stop after<I> "Pene"</I> (R10/4), fine mint. Rare, only 35 examples possible. S.G. 22/a, £694+. Photo | Christie's