More main period sans-serif 25mm UDCs under Bristol

A few more main period UDCs from offices under Bristol:

Churchill's UDC was issued on 14th May 1845, and is known used in black (June 1845 to January 1850) and in blue from March 1852 to July 1859.  The example below is in blue from March 1859.

Langford's main period UDC was issued on 2nd December 1851 and is known used from March 1852 to February 1857.  The example below is from July 1855.

West Town had the first main period UDC, issued on 10th July 1844.  It is known used in black from December 1844 to September 1848 and also in blue between December 1853 and August 1857.  The example in black below is from April 1846.