I have this rear sight which I think may be from an aircraft machinegun. The reason I think this is because I was given it by someone who had been a civilian employee at an RAF station during WW2 and after. It looks a bit like the ones I have seen mounted on the Vickers K. It has what looks like 100 M.P.H. roughly scratched on one side and BSA in a circle on the base.
Can anyone identify it for me? I have had it for about 40 odd years now and always wondered what it came off.

Thanks,

John.Attachment 80670Attachment 80671Attachment 80672
Information
Warning: This is a relatively older thread
This discussion is older than 360 days. Some information contained in it may no longer be current.