Description
GB 1912 4d sg379wi watermark inverted CONTROL M18, corner block of six unmounted mint, pristine fresh, plate 3a [ref 293-464/sb/al119]
4d sg379wi WMK inverted CONTROL M18, corner block of six um, pristine fresh, plate 3a
GB 1912 4d sg379wi watermark inverted CONTROL M18, corner block of six unmounted mint, pristine fresh, plate 3a [ref 293-464/sb/al119]