Hinton St George was issued with a 29mm serif undated double-arc handstamp on 21st November 1843 under Crewkerne. The UDC is known used in brown/black and in blue. The first example below is currently the earliest known usage of the UDC.
This next example, from September 1851 appears brown rather than black.
The next two sheets show the UDC in blue, from January 1858 and March 1858 (currently the earliest and latest reported examples).