The Webley revolver in .455 caliber was first adopted by the British military in November 1887 with the Service Mk I. This new pattern offered many innovations in revolver design.

Target models were also offered in the inter-war years. Mark VIs continued in production by Webley & Scott and (from 1921 to 1926) at the Royal Small Arms Factory, Enfield.

The Webley-Fosbery Revolver was developed by Lieutenant Colonel George Vincent Fosbery VC and produced by Webley & Scott from ... .455 Webley revolver, although eight-shot, .38 ACP revolvers were ...

Sial Manufacturers director SP Singh confirmed to TOI that they had got permission from Webley & Scott for the manufacture of the .455 revolver. Now, only licence approval from UP’s govt is needed.