Possibly the agent sought cachet services from condor and the zeppelin company to further legitimize Uruguayan dispatches via the graf zeppelin or tried to ensure future contracts and mail service.

也许代理人寻求condor和齐柏林公司的纪念邮戳服务以加强乌拉圭邮件通过graf飞艇发送的合法化，或试图确保未来的合同和邮政服务。

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In 1938, the German airship LZ130 Graf Zeppelin, sister ship of the ill-fated Hindenburg, made its maiden flight.

CNN: Monday,

This technique found its apotheosis in 1928's Graf Zeppelin, which was kept aloft by the gas in a row of 16 cylindrical cells of fabric that collectively displaced 3.7 million cubic feet.

FORBES: The long, loud history of hydrogen as a motor fuel.