1919 (12 May) Flown commercial cover from Zürich to Geneva (airmail bs the next day), franking includes 50c First Airmail issue crisply tied (plus pair of 7 1/2c), predates regular service to Geneva (from 1 Sept.), light cover folds not affecting franking, very fine (Image)

1924 Zeppelin “ZR3” (formerly the LZ126), the “Los Angeles,” cover with MIXED FRANKING with Germany 100pf “Pigeon” (to pay special aerial rate) tied at F’hafen (4.10.24 cds) and 65c Swiss postage (40c) + airmail fee (25c) tied at Geneva (1.X.24 airmail cds), carried by the airship (oval cachet) with Zürich, New York and Brooklyn bs (last two Oct. 15), an important showpiece and rarely encountered with Swiss franking, very fine (Sieger 20 a, € 400+) (Image)

1929 (August) Zeppelin 1st North America Flight, “Bundesfeier” colour ppc with imprinted 25c Airmail plus add’l franking (2.90Fr total) tied at Romanshorn on 27 July, flight cachet and 31 July F’hafen transit over New York Aug. 5 cds, addressed back to Lausanne, a most attractive item for this flight, very fine (Sieger 27, € 235) (Image)

1929 (May) Zeppelin Delayed 1st America Flight MIXED FRANKING, Swiss 20r postal card cancelled at Hammern on May 4, with German 2RM tied at F’hafen (May 15), flight cachet and red s/l hs announcing the delay, with New York receiver dated August 5, uncommon and very fine (Sieger 26 A, € 700) (Image)

1929 (May) abortive Zeppelin 1st America Flight, forced landing at Cuers (May 17), reg’d cover with 1.35Fr total franking tied at Oberhofen on May 21 and sent “Au Bureau Postal du Dirigeable … Camp aerien / Cuers-Pierrefou…” via Geneva (21.V.29 transit) and probably carried items intended for the RETURN FLIGHT to Germany on 23-24 May, very unusual item and possible unique from Switzerland, trivial envelope faults else very fine (Sieger 26 variety) (Image)

1929 (August) Zepelin Round-the-World Flight, spectacular franking of 8 airmails (four on reverse) plus 5Fr Pictorial, all tied Aug. 13 at Zürich, sent via F’hafen (Aug. 15) to Ohio with Los Angeles bs (Aug. 26), cover reduced at top else very fine (Sieger 30 b, € 435; only 272 flown) (Image)

1929 (Dec 15) Zurich-Khartoum “Ad Astra” Africa flight with special boxed cachet, bearing 1914-30 3F, 1923-25 50c airmail, 1929 Pro Juventute set of 4 and 25c William Tell, Khartoum arrival, very fine (Mü. 235, only 507 sent) (Image)

1929-36, Graf Zeppelin & Hindenburg Flights, great group of 15 diff. items, mostly airmail frankings, some unusual e.g. Egypt Flight, please examine, nearly premium items and very fine showpieces (Sieger 27A, 35B, 37A, 46, 57 I, 104, 122, 166, 183, 222A, 232, 238B, 246, 286, 406) (Est. € 900/1’200) (15) (Image)

1930 (May-June) Zeppelin Pan American Flight, cover with 9.50Fr total in stamps incl. Airs tied at Romanshorn on 16 May, endorsed to be carried to Rio via HAVANA, CUBA and with “American” diamond cachet (applied at Lakehurst) as well as Havana bs (JUN 2) and Rio bs (19 VI), both machine cancels, latter dated well after return flight as carried from Havana to Rio by ordinary mail, very attractive and scarce (195 recorded to Havana), very fine (Sieger 57 NN, € 450+) (Image)

1932 (July 31) Zeppelin “Luposta” Flight to & from Danzig, cover with 2Fr total (front & back) flown via F’hafen (30.7.32 transit) with Danzig bs (31.7.32), also 20rp pictorial postal card with total 1.30Fr add’l flown from the expo with 27.7.32 Danzig cds and 1.8.32 F’hafen pictorial receiver, boxed Luposta “rückfahrt” cachet, sent to Schaan (Liechtenstein), both very fine (Sieger 169, 170 B; € 275) (2) (Image)

1930 (Oct. 12) Graf Zeppelin Swiss flight mixed franking special dispatch from Basel, with red special cachet, franked with four 20c William Tell tied by Basel cds, and by German 1926-27 1M airmail for the return flight tied by on board cds, fine (Sieger 95a, € 275) (Image)

Unlisted Swiss despatch for 1931 Graf Zeppelin Vienna Landing Flight (12-13 July), “Dussler” ppc franked by Switz. 40c and 1F airs tied at Romanshorn (11.VII.31 cds), sent via F’hafen (next day transit to Vienna, “1 Wien 1” special cds), with superb strike of triangular flight cachet, extremely fine (Sieger 117 variety) (Image)

1931 (October) Zeppelin 3rd South America Flight, SAMPLES ENVELOPE (permitted for the first time on this flight) with 1.25Fr total franking incl. 20c tete-beche pair tied at Romanshorn, sent via F’hafen (Oct. 17 transit) to Pernambuco (Oct. 20 bs), cachet and special 6-line postal hs front and back, rare usage especially from Switzerland and very fine (Sieger 133 Ba n) (Image)

1931 (August) Zeppelin 1st South America Flight, MIXED FRANKING with Germany 2RM Polar-Fahrt issue, Swiss 20rp postal card with 20rp add’l franking sent from Zurich (25.VIII.31 airpost cds) with Stuttgart box airmail hs, flown by Zeppelin and though intended (by tiny private cachet and ms) for Pernambuco, shows clear Rio receiver (1.IX.31), very fine premium item (Sieger 124 Ca variety) (Image)

1933 (May) Zeppelin Italy Flight, Rome-F’hafen cover franked by 1.80Fr incl. two airmails tied at Zürich (May 26), Rome pictorial bs (May 29) plus F’hafen pictorial transit (May 30), sent to Chur (shows 17.V.33 “preparatory” cds), very fine (Sieger 207 var, € 750) (Image)

1933 (May) Zeppelin Italy Fight, the rare LIVORNO DROP, pc with total 1Fr Swiss airs tied May 28, with F’hafen departure cds (May 29) and well-struck Livorno arrival (29.5.33), very fine (Sieger 207, € 450) (Image)

1934 (Jul 29) Envelope from Bulle to Cotonou (Dahomey) with ms “Par Avion Marseille-Dakar,” franked with 1923-25 35c & 75c airmails, also with “Nationale Briefmarken Ausstellung” vignette, with Marseille, Dakar and Cotonou bs, fine (Image)

1930 (May 16) Graf Zeppelin South America flight, envelope bearing fourteen 1923-30 1F airmail stamps (two on front, rest on reverse), tied by Romanshorn cds with return ds below, South America flight and Europe Pan-America Round Flight cachets, Friedrichshafen cds, very fine (Sieger 57, € 240, 398 carried), also 1930 (Sept. 14) Geneva-Zurich flight with 75c airmail (Sieger 87)

1925-49, Partie Flugpostbelege mit u.a.1925 Lausanne/Luzern, 1925 Zürich/St Gallen, 1932 Genf/Bellinzona, 1933 Zürich/Mailand Erstflug, usw. (Image)