OWD,

There was nothing new or patentable about the action itself; unless you count the "humpback" top tang attempting to minimize the visual height of the action. It didn't work! Possibly rough forgings came from Germany; but lockwork and finishing looks to have been done in London. Sidelocks have the distintive "Lancaster" shaped plates. Examples that I have seen are all marked "Patent Ejector".

Best,

Mal