Germany: 1928-31 Zeppelin set 1RM-4RM on individual covers. 4RM on 1928 America Flight cover tied 'Friedrichshafen 7 OKT 28' cds. 2RM on Spanish Flight cover with 2 cachets & Sevilla arrival pmk. 1RM on Netherlands Flight cover tied by 'Luftschiffe 18 6 32' onboard cds. Sieger S21A, S52 & S165Ab cat €360. Stamps alone SG 443-5 cat £170+, Mi 423-4 & 455 cat €155+, cat €320 on covers. (3) (P)

Estimate AU$250

Germany: 1931 3rd South America Flight card franked Zeppelin 2RM tied 'Luftschiff 18 10 1931' on board cds. To Brazil with green flight cachet & 6-line red cachet, Brazil arrival cds dated '20x31' plus Condor zeppelin cachet. Brazil stamps tied by '22x31' cds for return to Germany with 'Friedricshafen 28 10 31' arrival b/s. Sieger S133. The 2RM SG 444 cat £80+, Mi 423 cat €65+ both as loose stamp (P)

Estimate AU$150

Germany; 1936 Hindenburg Registered flight card franked Chicago Flight opt 2RM tied by 'Friedrichshafen 3 5 36' cds with Europe-North America flight cachet, with New York transit & Germany 'Bautzen 16 5 36' return arrival cds. Sieger 406. Stamp SG 511 cat £300+, Mi 497 cat €250+ both for loose stamp, cat €350 on cover. (P)

Estimate AU$250

Switzerland: 1930 South America Flight Cover franked Mountain 5Fr re-engraved, tied by indistinct cds dated '16 V 30'. To Pernambuco with flight cachet, plus Brazil b/s dated '27 MAI 30', then to USA. Sieger S57(var) cat €185. (P)

Estimate AU$150