1974, PENRHYN: UPU centenary both values in two different imperforate proofs in UNISSUED colours printed together with two labels for sheetlets as a COMPOSITE PROOF with marginal colour bars etc., mint never hinged and very scarce (M) (Tax Method: Margin System) (Image)

1974, AITUTAKI: Centenary of United Postal Union (UPU) set of two values + printed label + miniature sheet in two different imperforate COMPOSITE PROOF sheetlets in different not issued colours and colour combinations incl. one with colour shift, spectacular and scarce items, MNH (M) (Tax Method: Margin System) (Image)

1974, GUINEA: UPU Centenary complete set of six incl. stamps from miniature sheets in an IMPERFORATE COMPOSITE PROOF sheetlet in unissued colours red, blue and yellow and additional gold printing, mint never hinged and scarce (Tax Method: Margin System) (Image)

1974, AITUTAKI: Centenary of United Postal Union (UPU) miniature sheet in an IMPERFORATE PROOF sheet with six miniature sheets all with MISSING GOLD printing from lower right corner with colour bars in margin, MNH and scarce (M) (Tax Method: Margin System) (Image)

1974, SAMOA: UPU Centenary 50s. miniature sheet 'William Willis and his raft 'Age Unlimited' and route Australia to Peru' in an IMPERFORATE PROOF with white margins around, MNH and very scarce (Tax Method: Margin System) (Image)

1974, GUINEA: Centenary of United Postal Union (UPU) original handpainted ARTWORK for the miniature sheet in two sizes (112 x 95 mm and 70 x 60 mm) on one carton with ms. descriptions in margin, very attractive and UNIQUE (including the issued miniature sheet) (M) (Tax Method: Margin System) (Image)