Bourton in Dorset was in the Shaftesbury, Hindon, and then Wincanton Penny Posts. It is four miles east of Wincanton which became its Post Town before it came under Bath in 1855. It transferred back to Wincanton in 1908 and then became a Post Town in its own right in 1910. It transferred to Gillingham, Dorset in 1936.
These next sheets illustrate its postmarks while it was in some of the states above, starting with a cover from May 1833 which had been missent to Bourton rather than Bruton. It received a boxed "No.4" handstamp from the Shaftesbury Penny Post.
The next two covers are from 1853 and 1855, while it was still under Wincanton and before it came under Bath. Both have yellow "BOURTON" UDCs and "WINCANTON" double arc handstamps.
Next we have a cover from August 1857 where Bourton is under Bath, with a black "BOURTON" UDC and a "BATH / 53" sifeways duplex cancel.
Finally here are two covers from 1907 and 1909. In the first it should be under Bath but there is no indication of the post town as the postcard just has a "BOURTON / DORSET" single ring cancel. The second postcard has a "BOURTON.WINCANTON / SOMERSET" single ring showing that Bourton is under Wincanton. Its postal address would be Bourton, Wincanton, Somerset even though Bourton was in Dorset.