Here are a few more Town Sub-Offices of Bristol, starting with North Street with a single-ring handstamp from November 1859.
North Street went on to have a barred numeral cancel; below is an example from 1869 from J.T. Ball & Sons, Maltsters.
Redcliff(e) also had a barred numeral cancel - the example below has an incorrect year in the dater, it should be "65" rather than "56" as the cancel was not issued until 1864.
Here are a couple of later examples of the North Street barred numeral cancel, from April & May 1872.
The single circle handstamp from Queen's Road would have been applied by the counter clerk when the registered envelope was posted in July 1894.
Registered items are a good source of town sub-office postmarks as they had to be handstamped by the counter clerk, as shown by this example from Gloucester Road in October 1911.
Another registered cover example from Queen's Road in June 1959.
And finally an example from Sea Mills in January 1971.