1967, CHAGALL WINDOW SOUVENIR SHEET - Plate proof on card in a complete printed sheet (!), imperforate, security fingerprints on reverse for every souvenir sheet, folded twice but design is unspoiled, 16 souvenir sheets. (Scott #SS179) (M) (Image)

1982, UN FLAGS - Complette set of plate proofs for 20c Flag Series of 1982 in sheets of 16, only two sets of sheets exist, security fingerprints on gum, imperforate, never hinged. (Scott #374/89) (T) (Image)

1982, CONSERVATION AND PROTECTION OF NATURE - 22 items; progressive plate proofs for the set in blocks of different size, some items with printer's notes indicating some flaws, 188 stamps. (M) (Image)