Right, knowledge brings you in power as we say here and that made me a book freak always looking for obsolete books.
For Swiss Lugers the following books are worth to look for;
Die Faustfeuerwaffen von 1850 bis zur Gegenwart by Heer. Few pictures with a lot of (good)german text.
The Rutsch book Faustfeuerwaffen der Eidgenossen. Lots of pictures and german text.
Pistolen und Revolver der Schweiz seit 1720 by Reinhart & Meier. Lots of pictures and german text.
Pistolen und Revolver der Schweiz by Reinhart. Based on part 5 and 6 of the famous Stocker Schmid book series. Lots of pics and german text.
Swiss handguns by H�¤usler. Lots of pictures and text in german, french and english.
Thanks,
Guisan.