Original U.S. WWII Thompson M1928A1 Display Submachine Gun Serial NO.S-424978 - Original WW2 Parts MG 34 Pistol Grip Assembly The brass helmet plate measures

The brass helmet plate measures 2 1/2" X 2 1/2"

however we cannot quite make out what it says

after the weapon designer Hugo Schmeisser

which have an adjustable magnification function

and red enamel on the inside

Original U.S. WWII Thompson M1928A1 Display Submachine Gun Serial NO.S-424978 - Original WW2 Parts MG 34 Pistol Grip Assembly The brass helmet plate measuresOriginal Item: Only One Available. This is a magnificent display gun built from excellent genuine WWII Thompson M 1928 parts and reassembled with a beautiful non firing BATF approved original reassembled WWII issue Thompson receiver. Every part on this display gun is original WWII manufacture other than 2 inches of solid steel replaced in the receiver (as required by BATF). Original WW2 parts include: 80% original reassembled ATF approved non firing