Maltese Crosses in Somerset ?

As far as I know there is no definitive list of Post Offices that had Maltese Cross cancellations.  The "Encyclopaedia of the Maltese Cross Cancellations of Great Britain and Ireland" by Prof. SD. Rockoff and M. Jackson includes a number of towns in Somerset (Bath, Ichester, Minehead, Taunton, Wincanton) but only has the Maltese Crosses that are deemed to be unique.

It has been suggested that the Post Offices that were issued barred numeral cancels in 1844 also had Maltese Cross cancels, so I'm looking for examples on cover that demonstrate where the Maltese Cross cancel came from.

As well as the towns with unique cancels I've got examples from Bridgwater (red and black) and more recently from Wells.

Scans of any other Somerset Maltese Crosses gratefully received !!