This stuff is all about defense against air raids. The one on the top of the stack says "Air Defense in Pictures". The smaller text at the bottom says "from Undersecretary Dr. Knipfer and Captain Lieutenant, retired, Burkhardt in the German Ministry of Aviation" The middle booklet under that is titled "Air Defense, National Socialist German Worker's Party". My guess would be they used the booklets as references to play the game and learn the skills at the same time.

they had a full lab they didn't have to send out the

I work there the top right one was not used due it was to close to the wall

First thing I would say is If those walls coul talk.... the stories they would tell would harrow up your soul

Great shots interesting themes