Hi, nice to meet you.
I have a small questions for all of you: I received some months ago two pocket books of whom I haven't any precise idea about their historical value. So before to give them(as a present!) to some air museum, I would to collect some news about their diffusion and use.
The first is:

The following is a teared off page probably from different book:

The second is as italian.german air dictionary referred to tecnic aeronautics words :

Many greetings.