Keynsham - Double Circle Double-Arc cancels (Dulwich)

Keynsham had a "KEYNSHAM / +" double circle double-arc cancel known in use from 1896-1910.  This type of cancel is known as a "Dulwich" cancel after the first place to be issued with the type.

Here are some examples from1896 and 1905, and a third example with no year in the datestamp.