Last weekend I had a go on this little beaut. It had a detachable plastic magazine, and top bolt cocking. Wouldn't say it was over 4ftlb, fairly easy to cock. I asked the guy if he knew anything of it, only thing he knew was its foreign and old. I offered him cash for it straight away, but not interested.
Needless to say I didn't win anything
Didn't see any makers name, or numbers (not that I'd expect too) nothing stood out to me