1922, 25 C. on 5 F. green/violet marketplace with overprint, five different overprint types in black, unused on paper, some with small shortages. Signed Scheller. New discovery unknown until this find! ÷ 1922 - 25c. sur 5f. vert et violet. Essais desurcharges en noir. Cinq timbres collés sur un support avec une surcharge différentes. Signé Scheller, Authentiques." (Maury no. 84) (Tax Method: Margin System) (Image)

1922, VINGT-CINQ-CENTIMES on 5 F. green/violet marketplace with overprint, eleven different overprint types in black, unused on paper, some with shortages. Signed Scheller. New discovery unknown until this find! ÷ 1922 - VINGT-CINQ-CENTIMES sur 5f. vert et violet. Essais de surcharges encadrées en noir. Onze timbres collés sur un support avec une surcharge différentes. Signé Scheller, Authentiques." (Maury no. 84) (Tax Method: Margin System) (Image)

1922, 25 C. on 5 F. green/violet marketplace with overprint, six different overprint types in red, unused on paper, some with shortages. Signed Scheller. New discovery unknown until this find! ÷ 1922 - 25c. sur 5f. Essais de surcharges encadrées en noir et en rouge. Six timbres collés sur un support avec une surcharge différentes. Signé Scheller, Authentiques." (Maury no. 27) (Tax Method: Margin System) (Image)

1935/1940, Definitives "Faidherbe Bridge", group of five single die proofs in different colours, with blank value field. Maury refers to 119/29 (Tax Method: Regular Taxation) (Image)

1935/1940, Definitives "Djourbel Mosque", group of nine single die proofs in different colours, with blank value field. Maury refers to 130/42 (Tax Method: Regular Taxation) (Image)

1935, Airmails, design "Plane and Landscape", single die proof in black on cardboard with blank value field. Rare and attractive! Maury refers to PA1/6 (Tax Method: Regular Taxation) (Image)

1935, Airmails "Plane and Landscape", group of nine single die proofs in different colours with blank value field. Maury refers to PA1/6 (Tax Method: Regular Taxation) (Image)

1935, Airmails, design "Plane and Camel", group of six single die proofs in different colours, with blank value field. Maury refers to PA7/11 (Tax Method: Regular Taxation) (Image)

1935, Airmails, design "Plane and Camel", group of six single die proofs in different shades of green/olive, with blank value field. Maury refers to PA7/11 (Tax Method: Regular Taxation) (Image)

1935, Airmails, design "Plane and Camel", single die proof in black on cardboard with blank value field; in addition die proof of "Camel" detail exclusively on thick paper. Rare and attractive! Maury refers to PA7/11 (Tax Method: Regular Taxation) (Image)

1935, Airmails, design "Plane and Camel", group of eight single die proofs in different shades of purple/lilac, with blank value field. Maury refers to PA7/11 (Tax Method: Regular Taxation) (Image)

1938, Definitives "Senegalese Woman", group of nine single die proofs in different colours, with blank value field. Maury refers to 149/53 (Tax Method: Regular Taxation) (Image)

1940, Airmails, design "Plane and Landscape", group of eight single die proofs in different colours with blank value field. Maury refers to PA13/17 (Tax Method: Regular Taxation) (Image)