Agreeing with your note, but is there a thread for these cancels, I have been searching as I have a few, and more coming...thank you
rod222Pernickety arises again
With respect, I have trouble with your thread title, not that I have a solution either,
but here's my thoughts.
In 1864 it was compulsory to use Hong Kong stamps from the Treaty Ports.
That's fine, your thread title encompasses that.
However in time, that rule became lax, and the Treaty Ports began to use their own Postmark Cancellers.
Your thread title would not encourage the discipline to a broader range of examples.
eg Szeming (Amoy) treaty port cancellation on a Chinese stamp, the "B2" canceller et al.
Stanley Gibbons lump those under "British Post Offices in China", I don't care for that either.
Gibbons quotes a Treatise "Hong Kong and the Treaty Ports of China and Japan" by F W Webb
That would seem to me, to be the best, up till now, I have had all mine under China / Treaty Ports / Amoy, (etc & etc 16 ports)
It doesn't worry me here, I save all images to my own Hirearchy, but I thought it worth a mention for polite discourse.
PS: The Foochow and Yokohama are beauties, not seen those before.