Well didn't know this "The gun is called a Sturmgewehr 44, literally meaning "storm rifle," and is the first "modern assault rifle ever made, eventually replaced by the AK 47 in 1947 by Russia, who copied the German design of the Sturmgewehr 44," I always thought the AK47 was an original design but seems it wasn't.
http://gma.yahoo.com/blogs/abc-blogs/valuable-wwii-gun-police-buy-back-022155231--abc-news-topstories.html