Chiang Kai-shek 40 cents - 5 dollars perforated and imperforated complete, very fine without gum (as issued), cat.v. 1010

Chiang Kai-shek 10 cents - 20 dollars with variety imperforated in 3 mini sheets originating from booklet, fine/very fine (1 ex. large brown spot in margin, not touching stamps), cat.v. 600+

Airmail overprint in purple, 1/8 Menalek (pair and 2 single ex.) the single ex. both with DOUBLE overprint, ½ Menalek (2 ex.) 1 ex. with DOUBLE overprint, 1 Menalek (pair) on cover from Dir Dawa 22-1-1930 to Addis Ababa (arrival postmark 25-1-1930), all overprints type I (19½ mm with double point) and additional 1/8 Menalek without overprint in strip of 4 on reverse of the cover, vertical filing fold/crease   

Airmail, group of 3 covers franked with stamps between Yvert nos. 1-9, fine/very fine (1 item addressee removed, 1 item wrinkles and 2 items signed Hélis). Rare!