I recently found this M1, which I thought was interesting, but I'm not a great expert on here helmets and I would like your help to identify it correctly.
The shell has front seam and movable hooks but could not find the marks, most likely covered by paint.
Reading your previous post I think the liner is a "Seaman Paper Company" (see photo 13) and was repeatedly repainted.
The chinstrap seems consistent with the rest while as s regards the net, that i found on it but I'm not sure whether the original one; however above the shell is clearly visible the net ghost.
I await your opinions.