1964, Europa issue, 25c and 50c, special souvenir sheet of two, perfect quality, full OG, NH, VF, Yvert #BS6, €1,850, Est. $400-$500 (Image)

1964, President John Kennedy, 50c bright blue and indigo, perforated and imperforated special souvenir sheets, full OG, NH, VF, Yvert #BS8, a, €1,000, Est. $200-$300 (Image)

1976, American Bicentennial, 1.70fr carmine and black, imperforated epreuve de luxe sheet, printed on thickened paper without gum, NH, VF and rare, only a few de luxe sheets were produced, Yvert and Dallay did not mention price for this proof, Est. $250-$300 (Image)

Air Post stamps. 1955, Sea Birds, group of 11 trial color imperforated proofs, including 100fr (3), 200fr (3) and 1000fr (5), in addition issued complete set of four with perforation 11, full OG, NH (all proofs) or LH, VF, Est. $250-$300 (Image)