The first United States airmail stamp has had an interesting story.
关于美国的第一枚航空邮票有一个有趣的的故事。
Sure. What you need to do is to put a stamp with enough postage and mark on the cover with "By Airmail".
没问题，你只要贴足够的邮资，并在上面注明“航空邮件”即可。
Sure. What you need to do is to put a stamp with enough postage and mark on the cover with "By Airmail".
没问题，你只要贴足够的邮资，并在上面注明“航空邮件”即可。
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