1929 AIR PROVISIONALS: 1/8 M. to 3 Th., Type I. cpl. set overprint in red and violet, Type II cpl. set overprint in red and violet, Type III cpl. set overprint in red and violet, scarce group (6 sets)

1929, AIR PROVISIONALS: 1/4 M. to 3 Th., Type I, eight rare varieties with violet overprint from first printing

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., Type I, eight rare varieties with red overprint, from seldom offered first printing

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., VIOLET overprint (Type II), cpl. set in blocks of six, rare multiples

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., VIOLET INVERTED OVERPRINT (Type II), cpl. set mint, rare

1929, AIR PROVISIONALS: 1/8 M. to 2 Th., violet overprint Type II, five blocks of six with INVERTED overprints each, rare multiples

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., RED overprint Type II , cpl. set in blocks of four, rare multiples

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., RED INVERTED OVERPRINT Type II, cpl. set mint, rare

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., RED INVERTED OVERPRINT Type II, 26 stamps with i.e. multiples, scarce group

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., violet overprint Type III, eight multiples with overprint on sheet margins or gutter, very scarce

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., 11 blocks of four with variety: "one stamp without overprint", unique group

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., violet overprint Type III, cpl. set in blocks of four, rare multiples

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., violet overprint Type III, 78 stamps with varieties, i.e. double-overprints, inverted overprints, overprints sideways etc., exceedingly rare group

1929, AIR PROVISIONALS: 1/8 M. to 3 Th., RED overprint Type III, cpl. set in blocks of four, rare multiples

1929, AIR PROVISIONALS: ex. 1/8 M. to 3 Th., six blocks of four, each with one stamp without overprint, rare group

1929, AIR PROVISIONALS: ex. 1/8 M. to 3 Th., red overprint Type III, six multiples with overprint on the "gutter", scarce group

1929, AIR PROVISIONALS: ex. 1/8 M. to 3 Th., red overprint Type III, 40 stamps with varieties, mostly overprint sideways, incl. multiples with combinations, scarce group

1929, AIR PROVISIONALS: ex. 1/8 M. to 3 Th., red overprint Type III, 58 stamps with varieties, i.e. inverted, misplaced and double-overprints, very scarce group

1929, AIR PROVISIONALS: 1/8 M. to 3 Th. BLACK overprint, Type II, cpl. set on registered cover with special "PAR AVION"-label, from Addis Abeba to Dirre-Daoua with arrival marking, a rarity, UNIQUE

1929, AIR PROVISIONALS: 1/8 M. to 3 Th. BLACK INVERTED overprint, Type II, cpl. set on cover with special "PAR AVION"-label, from Addis Abeba to Dirre-Daoua with arrival marking, UNIQUE