GUYANA 1967 (VARIETY) 6C RICE COMBINE WITH INVERTED OVERPRINT
6c Rice Combine single, multiple script CA watermark, on airmail cover with inverted 'GUYANA INDEPENDENCE 1966' overprint featuring GPO GEORGETOWN, GUYANA circular cancels dated 4 MR 68. Scarce arrangement. Generally fine used. SG424b; SC32Dvar
