I recently purchased this EGA from a local antique auto collector. I have bought a number of things from this man through the years. He said that he acquired this piece from a friend that dug it up at a nearby beach. There is some history of a USMC unit in the area during the WWI era. The dealer offered it to me for $5, which is a price i couldn't pass up. Even though the stud is missing, its still is a cool piece.
I was hoping that a USMC or EGA collector could help me out on this. Heres some pics