GREAT BRITAIN 1967 (MNH) 3D VIOLET CYLINDER BLOCKS, PERF TYPE F(L)
3d Violet, type A head, gum arabic, centre phosphor band, bottom left corner cylinder 1 and 1. blocks x 6 with type F(L) perforation. Fresh and fine. Mint never hinged. SG729; SGU8; SCMH5
Note: type F(L) perforation has no holes in the left margin and one extending into the lower margin of each column of perforations
