Get rid of the crap MkII, fairly useless unreliable things anyway.

The earlier one sounds interesting. It should be 'E' marked on the left hand side on the frame behind the trigger but not that many painted ones were stamped with the model name , most of that series had it printed on a label stuck in a recessed panel on the R/H side as Webley found that paint often filled the stampings and made the markings difficult to read.

What's the batch number please? it will be stamped at the front on the spring guide as well as possibly under the left grip. It sounds like a candidate to be added to the serial number list on here.