Looks like the standard type in size 62 or 64.
It's in decent condition too.........
Not a square dip.
Only m16 ET62 and ET64
a nice helmet though
As the others have said a nice M16
Where are you getting these "Square dipped M16s " from, as far as my reference books go they did'nt make them in the ww1 format helmets, there is a Droop bill M17 but the flaired rim is the same as always
They were the very first stahlhelm as we know it Dave, made from December 1915 and very early into 1916. The shape of the 'dip' at the front of the skirt put too much stress on the steel and a great many of them have diagonal cracks in the corner, which led to a slight redesign of the angles involved.
A rare period pic of the square dip in wear in WW1, and a nice comparison with a standard M16.