8/27/21 - This is an original, Type 1 variation snail drum Luger magazine. The magazine comes with an original 2-piece cover as well. The dust cover is imperial proof stamped. The magazine is also proof stamped towards the top of the tube. The magazine is matching numbered, and B/N maker stamped as shown. There's patina throughout the finish, but no excessive wear, rust, or pitting. The spring is strong and fully functional.