I don't recall the dates now but at one point Winchester Repeating Arms Co imported guns made by Bonehill. Not sure if they were sold under the Bonehill Name or the Winchester name.

I could be wrong, but was of the opinion Bonehill was a Birmingham maker. Some B'ham makers maintained a London address for the "Prestige".

Miller/TN
I Didn't Say Everything I Said, Yogi Berra