Recently got this in a trade from a friend, thought I would share in case others haven't seen these markings before. I think we're all pretty familiar with the Russian capture marks on German WWII arms, but here is one that ended up with England after the war. This is a Nazi marked Mauser HSc (eagle/135) that also has British proofs along with the stamp "Not English Make". All guns of foreign manufacture entering England from 1925-1954 were required to be marked as such. Given that this one is German military marked it may have been either a British capture or bringback as a soldier would have had to submit the gun to a proof house when bringing it back to the country. This one doesnt have US import marks so it still made it over here sometime before having to get marked up on our end.