邮驿小知识

庚申年（猴）版票

天安门图（第五版）普通邮票

商业信函 | commercial letter

保价信函 | insured letter

特种挂号信函 | special registered letter

信函 | letter

义务兵免费信件 | postage free letter of compulsory serviceman

信件 | letter and postcard

函件 | letter post item

存局候领邮件 | post restante mail

附回执邮件 | mail with advice of delivery

报矿邮件 | mail for reporting mineral deposit

邮电（政）公事邮件 | on posts and telecommunications service mail

免费邮件 | postage exempted mail