Bill, I assume you mean WW1 era?
As there is ;
Commericial pre WW1
WW1 military and commericial
Weimar military, police and commericial
Nazi era military, police and commericial
Lugers cover 45 years being made by 7 manufacturers, so...
Yes, buying many books cover a lot of areas.
Have you read the review of Jan Still's book by Dwight Gruber?
http://forum.lugerforum.com/forumdisplay.php?f=133
Ed