Great Britain 1971 Machin multi-value coil (6p,2p,1p,1/2p,1/2p) with constant variety 'white flaw above P of first 1/2p' (ex G3 coil roll 10) unmounted mint
Great Britain 1971 Machin multi-value coil (6p,2p,1p,1/2p,1/2p) with constant variety 'white flaw above P of first 1/2p' (ex G3 coil roll 10) unmounted mint