Vignettes from the International Philatelic Exhibition of 1913. Block of 4. Serrated. 4 colors. Superb. (Image)

Type White. Sheet on thick paper printed at the Atelier des Timbres Poste around 1905 with original photographs provided by the Atelier and Arthur Maury from its catalogue in order to carry out ink tests as part of the research of shades for the issue of the Ligned Sowers. JF Brown certificate, less than 10 known sheets (Image)

1c. Type White grey or thin paper (40ft.). Block of 4 on leaf. Type IB on stamps 1, 2 and 4 holding IA on the 3rd stamp. Superb. RR. (Image)

1c. Type White grey. Cream pink paper trial. Imperforate in pair Head-toe from leaves with 2 pairs. Very Fine. (Image)

1c. Type White grey. Trial of purple paper. Imperforate in pair Head-toe from leaves with 2 pairs. Very Fine. (Image)

1c. Type White grey. Testing of bluish paper. Imperforate in pair Head-toe from leaves with 2 pairs. Very Fine. (Image)

1c. Type White grey. Trial of grey paper. Imperforate in pair Head-toe from leaves with 2 pairs. Very Fine. (Image)

1c. Type White grey. Trial of cream-grey coloured paper. Imperforate in pair Head-toe from leaves with 2 pairs. Very Fine. (Image)

1c. Type White grey. Trial of dark cream pink paper. Imperforate in pair Head-toe from leaves with 2 pairs. Very Fine. (Image)

1c. Type White grey on granite leaflet greenish-grey paper. Block of 4 with Head-to-Toe, Type IA and IP. Small tear repaired. RR. (Image)

1c. Type White-grey on greenish-grey paper leaf. Block of 4 with Head-to-Toe, Type IA holding IP. Very Fine. (Image)

1c. Type White grey. IP Type - AI pair holding IFine. Imperforate. Corner sheet margin. Superb. (Image)

INSTRUCTIONAL COURSE. Type White. Complete series of the 1c. to the 5c. + 1/2c. on 1c. grey + 5c. Preo green. 7 values. "SPECIMEN" overload in blue or red. One of the two series seen to date complete. Superb. RRR. (Image)

INSTRUCTIONAL COURSE. Type White. Series of 1/2c., 1c., 2c., 3c. and 5c. 5 values in pairs. Override "SPECIMEN" without accent holding to normal. Spink odds €2,490. Superb. RRR. (Image)

Type White. 3c. Workshop test in red (print run of 107 copies) in double printing. Imperforate. Superb. (Image)

INSTRUCTIONAL COURSE. N°109a-CI4/109a-CI10. 3c. Type White orange. Local overload of CAEN "CH-T" in purple and "CANCEL" overloads and face values in black. Values with Sheet margin. Superb. RR. (Image)

3c. Type White orange. Block of 8. Para obliterated. Superb. R. (Image)

3c. Type White orange. Type IFine. Block of 4. Corner of the sheet. Variety of stitching by folding. Superb. (Image)

INSTRUCTIONAL COURSE. N°109-CI1. 3c. Type White orange. Triple surcharge "CANCELLED". Superb. (Image)

3c. Type White orange. Block of 4 with vintage 7. Top sheet margin. Superb. (Image)

INSTRUCTIONAL COURSE. N°10-CI3. 3c. Type White orange. "SPECIMEN" overload. Vintage pair 3. Superb. (Image)

3c. Red-orange white type. Type IFine. Very nice variety of folding and perforation. Superb. (Image)

3c. Type White red. Block of 4 with neighbors primer. Imperforate. Para obliterated. Corner sheet margin. Superb. (Image)

PREOBLITERATE. N°40. 4c. Type White brown. Sheet margin. dated -8.7.24 on the left. Superb. (Image)

5c. Type White Green. Booklet of 40 stamps. Exceptional quality. Superb. RR. (Image)