1953 and 1955 a pair of covers from Canton to USA, f.w. East China Area Chairman Mao surch issues and Tiananmen R series issue, tied by
1953 and 1955 a pair of covers from Canton to USA, f.w. East China Area Chairman Mao surch issues and Tiananmen R series issue, tied by Canton No. 4 and 9 cds respectively.1953及1955年一對廣州寄美國封，貼華東區毛像改值票或天安門普票，分別銷廣州（四）及（九）三格日戳。
