SOUTH AFRICA 1933 (MMH) 3D GROOT SCHUUR PAIR WITH WINDOW FLAW
3d Groot Schuur pair, inverted watermark, with window flaw on English language stamp. Fresh and fine. Mint moderately hinged. Offered with normal pair featuring upright watermark. SG45dw; SC39var; SACC46var
Note: the window flaw occurs on column 4, row 20 of sheets printed prior to 1937
