Tsai Kai Po - 1949 May 8 Chan S153-56 Unit Stamps in complete set of Ordinary, Registered, Express and Airmail postage paid, on sale for only four days (Wm. E. Jones collection)

Tsai Kai Po - 1949 May 8 Chan S153-56 Unit Stamps in complete set of Ordinary, Registered, Express and Airmail postage paid, on sale for only four days (Wm. E. Jones collection)