1937 (April 16), Air Africa First Flight cover Algiers - Tunis, franked by four values, including horizontal pair of newspaper stamps, four-line confirmation marking, the same day arrival is on reverse, VF (Image)

1950, Cross of Agadem, 50fr purple and rose, 100fr black brown and brown violet, complete set of two used on air mail cover addressed to NYC, cancelled by Ghadames ''21.12.1950'' postal markings, VF and scarce, Sassone#PA5-6, C.v. €5,600, Est. $500-$600 (Image)

1949, Cross of Agadem, 100fr in violet and lilac (colors close to issued stamp of 50fr), full OG, NH, VF and rare, neat pencil sign on reverse, Sassone #A6E, C.v. €6,000, Est. $1,200- $1,500 (Image)

1932, Paris-Noumea Flight, black overprints on 40c red and olive green and on 50c violet and brown, complete set of two, full OG, LH, F/VF, only 3,000 sets were printed, tiny expert's mark on reverse, C.v. $950 (Image)

1935 (August 6), Rhodesian and Nyasaland Airways, Ltd First Flight cover from Beira to Limbe (British Nyasaland), franked by two Mozambique Company stamps, Blantyre drop and Limbe same day arrival markings on reverse, VF and scarce, $250-$300 (Image)

1922, red surcharges (type II) on Imperial Consular stamps, 12m on 2.25r and 24m on 3r, positions 16 and 18 respectively of 25-stamp settings, full OG (first one with blue crayon mark), VLH, VF, expertized by H. Bloch and others, C.v. $325 (Image)

1922, red surcharge (type V) 120m on Imperial Consular stamp of 2.25r dark blue on green and orange network, sheet position 13, full OG, VLH, VF and scarce, only one stamp exists of type V in setting of 25, expertized by H. Bloch and Dr. Jemtschoujin, suggested retail $550 (Image)

1922. red surcharge (type I) 600m on Imperial Consular stamp of 3r dark green on rose and green network, position 12 of 25-stamp setting, full OG, VLH, VF, Soviet Philatelic guarantee hs, C.v. $260 (Image)

1922, red surcharge (type I) 1200m on Imperial Consular stamp of 10k violet on green and buff network, position 1 of 25-stamp setting, pin-point inclusion invisible from the face, full OG, previously hinged, VF, Soviet Philatelic guarantee hs on reverse, C.v. $975 (Image)

1922, red surcharge (type II) 1200m on Imperial Consular stamp of 2.25r dark blue on green and orange network, position 4 of 25-stamp setting, full OG, previously hinged, VF, Soviet Philatelic guarantee hs on reverse, C.v. $1,950 (Image)

1922, red surcharge (type III) 1200m on Imperial Consular stamp of 3r dark green on rose and green network, position 20 of 25-stamp setting, full OG, LH, mostly VF, owner's hs on reverse, guaranteed genuine, C.v. $2,250 (Image)

1924, black surcharge 10k on Fokker F.III stamp of 5r green, wide ''5'' variety, original gum with natural waves, previously hinged, VF, Soviet Philatelic guarantee hs, C.v. $1,250 (Image)

1932, Airship over the Dnieper Dam, 15k gray black, engraved printing, perforation 12½, complete sheet of 40 (5x8), perfect condition, full OG. NH, VF, C.v. $480++ (Image)

1934, the Stratosphere Disaster, 5k, 10k and 20k, complete set of three used on registered cover from Moscow to USA, tied by Moscow ''21.10.34'' date stamp, appropriately cancelled exchange tax stamp 5k/70k is on reverse, NYC ''11.1.1934'' transit and Columbus, OH ''Nov.2.1934'' arrival markings, minor wear on reverse and discoloration on front, still F/VF and extremely rare franking by the complete set, Est. $1,000-$1,200 (Image)

1935, Chelyuskin Rescue, 1k-50k, complete set of ten, perfect centering with bright colors and intact perforation, full OG, NH, VF, C.v. $2,058 (Image)

1935, Moscow - San Francisco Flight, red surcharge 1r on S. Levanevsky 10k dark brown, surcharge position 16 of 25-stamp setting, large part of OG, VF, Soviet Philatelic guarantee hs, C.v. $500 (Image)

1937, Aviation Exhibition, 10k-1r, complete set of seven and souvenir sheet of four stamps of 1r, full OG, NH, VF, C.v. $624 (Image)

1951 (October 16), air mail large size registered pre- printed cover (banking correspondences) from Moscow to Stockholm, franked by four stamps, including horizontal pair of Airplane over Moscow 2r brownish red on bluish paper, all appropriate markings, mostly VF and scarce franking (Image)

1959 (February 2), large size registered air mail cover from Moscow to Vienna, franked by North Pole Station souvenir sheet of four 1r multicolored, tied Moscow Post Office date stamp, Vienna ''5.2.59'' arrival marking, VF (Image)

Zeppelin Flight. 1930 (September 10-11), Moscow Return Flight cover, addressed to Germany, franked by Lenin 10r indigo, perforation 10 on paper with watermark Lozenges, right sheet margin single, cancelled with Moscow PO No.40 date stamp (non-Zeppelin special ds), red oval German confirmation cachet, Friedrichshafen arrival marking on reverse, VF and rare franking by high value definitive stamp along with non-Zeppelin cancellation, Sieger #85E, C.v.€350++ (Image)

1934, King Victor Emmanuel, black overprint ''Servicio di Stato'' on 25L + 2L cooper red, full OG, LH, VF and scarce, Dr. H. Avi certificate, C.v. $1,950, Sassone Servizio Aereo #1, C.v. €3,250 (Image)