Hi, there are a lot of Civilian masks (I only do military masks) but i am pretty sure it is pre war!
Maskenspanner is nicely 38 dated and H for Heer, so no problems there !! ( there are also unmarked Spanners, but these are post war!)
So for 45 I would say, go for it
Yes it is a civilian Gasmask, but which one, it's a tricky question for non specialized people in civilian items...and i'm one of them.
I'll make two guesses concerning this type : Vollmaske 700 something from the 40s and Polizeimaske from the 30s/40s
"I didn't use any weapon in combat during the war, but i killed hundreds, perhaps thousands of men...they're now at the bottom of the sea"
Walter Borg (ex-MI-6, groupe Mounier) Agent and radio operator in Malta, Tunisia and Italy between 1941 and 1945. Arrested twice, tortured twice, escaped twice, survived the war...
"The future torments us, the past holds us, that is why the present escapes us."
In Memoriam :
Laurent Huart (1964-2008)