回复 dowager1894
Thanks for your comments from that I have learned something, although it is a li ...
williamzhang 发表于 2014-10-20 08:14
A set (10 volumes) of Paul Ke-Shing Chang's book"History of Postal cancellation of China" is a must for China's postal history philatelists as it listed thousands of early Chinese covers which we can study its cancellations, postal routes and rates. The set of books were published between 1989 to 1995 and are out of print now. Michael Rogers used to have the books for sale but may be sold out now. They can only be found in auctions.
回复 9#williamzhang
I saw the letter in Interasia's catalogue . It is listed as #6913 under the HK and Treaty Ports catalogue. I'll inform my friend who had shown his interest before.