Help me identify this revolver

[Karl123]

Hello,

as my first post on this forum I would like some assistance in identifying the revolver in the pictures below. My research hasn't yielded anything so I hope somebody is able to help.

As you can see the, the barrel bears the text "COTS LONDON" or possibly "CO.TS LON DON". Looking at the marks, one possible interpretation would be the
,
i.e. Birmingham, 1813-1904 (LINK). But it is quite difficult to tell for sure.

 

[Dark Skies]

Looks to me to be a five-shot percussion Webley-Bentley made around 1855.
Is it a .54" bore?


This is the Birmingham proof house mark - all guns sold in Great Britain have to be proofed before they can be sold.

 

[ArchAngelCD]

What ever it is I would suggest trying to stop any further rust from pitting the metal. Take off the grips and soak the revolver in a mild rust inhibitor like Break Free CLP.