GREAT BRITAIN 1968 (MNH) 4D DEEP OLIVE-BROWN CYLINDER 4. BLOCK
4d Deep Olive-Brown, type A head, PVA gum, two phosphor bands, bottom left corner cylinder 4. block x 6 with type A perforation. Superb unmounted mint. SG731Eav; SGU12; SCMH6
Note: type A perforation features a single hole extending into the left margin of each row of perforations and none in the lower margin
