That Benjamin Wild gun looks for all the world a Webley 7 scot 700 series under all that engraving. They where known to sell 700 series in the white into the trade. Some do turn up with various names and I have seen one with the name A.N Other, so this gun presents more questions than answers.
My one and only visit to Benjamin wild was in the early 1960s and from what I can remember it was in the Birmingham gun quarter either Lower Loveday street or Price street the workshop was situated in one of those old multi story workshop buildings that had numerous name plates of the occupants. I do regret to this day not taking photographs. My visit was to have my extremely worn Cogswell & Harrison side by side 12 gauge put back on face, I do not know who I spoke to regarding my gun but what he said to me about it even today makes me smile "well young man the impossible we can do right away but miracles will take longer". It took two months and it was returned by Post, something that could not happen today. The work was first class it was still on face when I sold it after a great deal of use.