For a bit of reference material, here's a link to a scan of the Webley & Scott 1914 Catalog (Adobe PDF, 7.6mb file).


http://rbsiii.com/nitro_express/Webley%20&%20Scott%201914%20Catalog.pdf


Shotguns with this treatment are featured on pages 20 and 21 of the catalog; the sidelock W & R 1st being on page 20.

Curl