I have a kerr 44 Cal. pistol marked London Armoury patent 2633. The same number is on the cylinder. Each chamber is proofed marked with what seems to be a flaming cannon ball. Part of the wood on the grip is missing . Under the bottom plate on the grip it is marked W. Watson and nw or mn. The name Watson seems stamped and the mn carved. Both markings are in the wood part under the bottom plate. The barrel seems to be proof marked with the same flaming cannon ball and some other mark I can not make out and LAC. A few screws areKerr missing and the hammer is not connected to the spring. Any information on this anyone? Thanks, Ken