[Above: This is the cover of a very rare booklet entitled 'Wissenswertes vom Gas=und Luftshutz' (Interesting Facts About Gas and Air Protection). It was printed in 1933 and has 54 pages.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)

[Above: Illustration within.)