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it is a genuine unused, o.g., hinged, top margin Plate No. F14242 block of six (the bottom left, bottom center, and top stamps never hinged), the top left stamps with a natural paper inclusion.
it is a genuine unused, o.g., previously hinged, bottom margin Plate No. 16629 block of six (the left and right stamps never hinged, with natural gum skips).
it is a genuine unused, o.g., never hinged, top margin Plate No. 18681 block of six, the bottom right stamp with a pencil note on the gum, and the bottom left stamp with a light gum crease.