Double surcharge of ¼ on each stamp offset NE – Rare multiple as only a single sheet with this OPT error exists from which all genuine examples are from – Accompanied with recent 2017 BPA certificate stating ‘pressed vertical crease crossing right pair central perforation reinforced (by hinge)
3 stamps fine all with quite fresh gum top right stamp with short pressed crease (visible surface only) between very fractionally enchroaching lower right stamp.