Southern Rhodesia. 1932 (1 May) Victoria Falls 3d. deep ultramarine vertical pair from the right of the sheet variety imperforate horizontally, with the unique Printer's Guide mark between the stamps (Rows 5 and 6); original lightly mounted gum, light horizontal gum crease between impressions. Fine and very rare with only twenty-two units existing in pairs, blocks of four and the block of six, this being unit 6 as identified in the Rhodesian Philatelist article (see footnote below). B.P.A. Certificate (2013). S.G. 30a (Image1)

Est. £8,000-10,000