Smaller early serif UDCs - South Petherton, Frome and Wiveliscomb(e)

There are six towns with smaller (24 mm or less) UDCs in a serif font - South Petherton, Frome, Wiveliscombe, Dulverton, Chard and Ilchester.  Here are my examples of the first three.

South Petherton's UDC was registered in the Steel Impression Book (SIB) on 5th May 1828 and is known used  until February 1839.  The first example below from November 1828 may be the earliest known use, while the second example is from August 1837 (with a nice "Missent to Bristol" cachet).

Frome's UDC is not in the SIB but is known used between July 1828 and 1838.  The entire below is from May 1834.

Wiveliscombe's UDC was registered on 4th May 1829 and is known used between May 1829 and 1841.  The handstamp (and the Post Town in the SIB entry) are spelt "WIVELISCOMB" with no final "E".  The example below is from October 1835.