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it is genuine unused, o.g., never hinged, bottom margin Plate No. 21172 block of six the bottom right stamp with tiny natural gum skips and the top right stamp with natural gum wrinkles.
it is a genuine unused, o.g., hinged, top margin Plate No. 634 and Imprint block of four with reinforced perf separations at the right and the bottom right stamp with a short corner perf at the bottom right.