纪念邮戳，首日封一信封上贴上一种有纪念意义的图案，以纪念集邮或邮政上的一个事件。
A commemorative design stamped on an envelope to mark a postal or philatelic event.
美国邮政管理局特别为洛杉矶音乐周印制的放大加框纪念邮票及印有所有受奖人名字的纪念邮戳。
The us postal services enlarged commemorative stamps and a cachet seal specifically produced for la music week bearing the honorees names.
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。
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。
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.
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