Prussian Artillery EM M1915 Kugelhelm

[RON]

Plain/unvented spine? :-k

http://www.ebay.com/itm/WWI-German-Pickelhaub-/280908031958" onclick="window.open(this.href);return false;

 

[911car]

Yes of course! This was regulation on artillery helmets.

 

[RON]

Salut Bruno!
I thought they had vented spines like the rest... Check-out Tony's Artillery M15s for instance; all vented: http://www.kaisersbunker.com/feldgrau/helmets/fgh21.htm" onclick="window.open(this.href);return false;
http://www.kaisersbunker.com/feldgrau/helmets/fgh39.htm" onclick="window.open(this.href);return false;
http://www.kaisersbunker.com/feldgrau/helmets/fgh38.htm" onclick="window.open(this.href);return false;

Maybe both versions existed for Artillery M15s as I might've read somewhere?

What about the unit markings and what the seller is saying about it?