GREAT BRITAIN 1963 (MLH) 4½D CHESTNUT CYLINDER 8 BLOCK, E/I, PHOSPHOR
4½d Chestnut cylinder 8 block x 6 on whiter paper with two phosphor bands (applied photogravure) reacting blue, perf type E/I. Fresh and fine. Mint lightly hinged. SG616b; SGS98; SC360p
