1936年5月5日德国寄昆明齐柏林飞船L.Z.129明信片, 带德文指示印记, 贴德国75pf.邮资, 销法兰克福日戳, 又贴有欧洲至北美洲红色票, 5月9纽约中转戳及6月26日昆明到达戳; 罕见由德国至纽约,再到三藩市然后平邮到香港, 相信只有两件邮件利用这不常见的邮路.ChinaCovers and CancellationsAirmailInternational RoutesZeppelin Mail1936 (5 May) real photo card of Zeppelin L.Z. 129 to Kunming "<I>mit luftschiff Hindenburg nach Nordamerika und mit luftpost ab New York" bearing Germany 75pf. tied by Frankfurt c.d.s., Europe to North America cachet in red, New York (9.5) and Kunming (26.6) c.d.s. A rare card from Germany to New York, cross country to San Francisco, thence by surface to Hong Kong. It is thought that there are only two covers following this route. Photo
