1921, July 1, First Return Flight, Tsinan-Peking. China 15c Air Post first issue and 3c Junk, (Image)

E. $ 300-400

GERMANY, 1930, 2m, 4m South America Flight (C38-C39). Used with 2m Zeppelin and 50pf Eagle, a (Image)

E. $ 300-400

1931, July 24-31, Russia Polar Flight (Sieger 119C). Russia 30k-2r (C30-C33) tied by Leningra (Image)

E. $ 500-750

1932, March 21-29, 1st South America Flight, France to Pernambuco, Brazil (Sieger 138). Franc (Image)

E. $ 200-300

1932, August 29-September 7, Turkey to Brazil Zeppelin Cover (Sieger 171). Turkey 100k on 200 (Image)

E. $ 300-400

1933, May 21, Iraq Zeppelin Cover (Sieger 214B). Registered cover bearing Iraq 3f, 10f on 2a, (Image)

E. $ 500-750

ITALY, 1933 Balbo Flight, Milan to United States. With 1933 5.25l+44.75l Triptych (C49; Sa (Image)

E. $ 750-1,000

1933, June 27, Netherlands to Iceland, Balbo Flight. Eight Netherlands stamps for 2g 87-1/2c, (Image)

E. $ 1,500-2,000

ITALY, 1933 Balbo Flight, Italy to Iceland. Italy 1.75l, 75c and 10c stamps, tied by "Crocier (Image)

E. $ 400-500

ITALY, 1933 Balbo Flight, Italy to Iceland. Italy 75c (2) and 50c stamps, tied by "Crociera A (Image)

E. $ 400-500

ITALY, 1933 Picture Post Card During Balbo Stop in Canada. Canada 3c and commemorative flight (Image)

E. $ 400-500

1933, October 1-2, Bremen to New York, Catapult Flight (Graue-Leder K-171 SU). With Ru (Image)

E. $ 300-400

1933, October 14-November 2, Century of Progress Flight, Latvia to Montevideo, Uruguay Via Brazil (Image)

E. $ 500-750

1933, October 14-November 2, Century of Progress Flight, Greece to Chicago Zeppelin Cover (Sieger (Image)

E. $ 300-400

1934, June 23-July 6 Argentina Flight, Gibraltar to Pernambuco, Brazil Zeppelin Cover (Sieger 254 (Image)

E. $ 300-400