1927 "Compagnie Internationale de Navigation Aerienne" (CIDNA), imperforate, non-denominated engraved proof in dark blue, never issued, block of four, v.f. (Image)

Est.$500

1927 2fr orange and blue, 5fr dark blue and buff, sheet corner margin blocks of four, n.h., fine-v.f., cat. $3200 (Cat No. C1-2) (Image)

Cat. $3200, Est.$1,200

1945 "Collection Imperiale", three non-denominated artist die proofs in different colors, v.f. (Image)

Est.$200