i need to ask about this gun:

LONDON ARMOURY CO. 54-BORE KERR'S PATENT FIVE-SHOT SINGLE-ACTION PERCUSSION REVOLVER, serial no. 10,927, with 5 5/8in. octagonal barrel retaining slight traces of original blued finish, border engraved frame engraved 'KERR'S PATENT 10,927', border engraved back-action lock signed 'LONDON ARMOURY CO.', chequered walnut butt, Kerr patent underlever, lanyard ring (some pitting throughout), London proof marks.

Other Notes: James Kerr was the Company Superintendent of the L.A.C and a noted revolver shot. The reasoning behind the London Armoury Co. taking up production of Kerr's revolver whilst they were enjoying great commercial success with the Beaumont-Adams remains obscure. Attempts were made to interest the British authorities in the revolver but their most successful contract was with the Confederate Army.

its going on holts at the march sale and i really like the lockwork any additionel info you can offer will be much appriciated.

best regards

peter