For illustration purposes, here's a Lancaster .280 Flanged from 1912:

http://forums.nitroexpress.com/showflat.php?Cat=0&Number=61739&an=0&page=4#Post61739

This is Webley's PHV-1 Model, Webley serial number 13049. This rifle is a rare example of a Webley DR built for "the trade" that MAY have been finished by the retailer, and the action bar is filed up in a way that is not typical of this model, nor is the engraving pattern. By the same token, these are full custom guns and the finish style could easily have been ordered that way from Webley's.

Here's the Lancaster .400 again from the same time period:

http://forums.nitroexpress.com/showflat.php?Cat=0&Number=54455&an=0&page=5#Post54455

Can't find my notes for the numbers. Totally different rifle, because it's from Osborne instead of Webley.