sale 332 Day 3

1929 Shanghai Customs to Nanking On Service registered cover, franked on reverse Junk Issue 1c x 22, tied by Shanghai cds., along with "Passed By Customs/ Duty Free/ P.O. Shanghai" oval cachet and Nanking arrival. Rare domestic cover with Customs Passed Free cachet. VF-F.
1929年上海海关寄南京海关总税务司挂号公函封，背面贴帆船1分票22枚，销上海日戳，旁盖少见之上海海关驻邮局免税放行章及南京到达戳。十分罕见之国内邮局需要海关免税放行。上品。