1931 Polar Flight, 2m ultramarine, used on flown cover, with appropriate cachets, v.f. (Cat No. C41) (Image)

Est.$150

1933 Chicago flight, cacheted cover (with background) franked with 2M and additional adhesives, cancelled on board (25.10), with triangular cachet and Chicago (Oct.26) Century of Progress arrival handstamp, v.f. (Mi.496) cat. €550 (Cat No. C44) (Image)

Cat. €550, Est.$150

1935 (14 Nov) shuttle flight cover originating in Stuttgart, addressed to Capt. Max Pruss, on board the Graf Zeppelin, with 1985 Sieger certificate. A fine example of the shuttle service (mail flights between Germany (Friedrichshafen on Bodensee near Berlin) and Brazil (Pernambuco, also known as Recife, and then Rio de Janeiro) began in 1930. European and other mail was carried under contract between the two countries. Between May 8, 1935 and December 9, 1935 it undertook a total of 33 trans-Atlantic flights. Two were between Pernambuco and Seville, Spain. Three other mail only flights occurred between Pernambuco and Bathurst in Gambia. These were known as pendulum flights as the Graf Zeppelin either dropped or hauled up mail in Bathurst without actually landing) (Cat No. Si.330A) (Image)

Est.$350

1935 (17 Nov) shuttle flight picture postcard from the airship to Erding, with special overprinted label "An Bord Graf Zeppelin", v.f. example of the scarce shuttle flight service from the Zeppelin to Germany, signed Sieger (Cat No. Si.330B) (Image)

Est.$350

1935 (25 Nov) shuttle flight cover originating in Stuttgart, with Zeppelin label overprinted "On Board the Graf Zeppelin", with 1985 Sieger certificate. This date represents the 500th flight of the Graf Zeppelin (Cat No. Si.330B) (Image)

Est.$500