GREAT BRITAIN 1976 (MNH) 9P VIOLET CYLINDER 12 BLOCK, PVAD
9p Violet bottom left corner cylinder 12 (phosphor 17 displaced down 22 mm) block x 6, two phosphor bands, fluorescent coated paper, PVAD gum, without varnish coating. Fresh and fine. Mint never hinged. SGX883; SGU175; SCMH67
Note: the phosphor number, only normally visible under ultraviolet light, is normally to the left of the cylinder number. In this case it is shifted down by 22 mm so that it appears in the margin in line with the '9p' of the stamp in the penultimate row