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it is a genuine unused, o.g., previously hinged, top margin block of four (the bottom left and top stamps never hinged), the top left stamp with two small thin spots.
it is a genuine unused, o.g., peviously hinged, top margin Plate No. 836 and Imprint strip of three (the center stamp never hinged), with a natural hole in the left Plate No. selvage, not affecting the stamp.