Lot is "Imperial Lugers and their Accessories Volume IV" first edition by Jan C. Still, "Weimar and Early Nazi Lugers and Their Accessories Volume V" second edition by Jan C. Still, "Third Reich Lugers Volume III" first edition by Jan C. Still, "The Kreighoff Parabellum" by Randall Gibson, "Mauser Bolt Rifles, Third Edition" by Ludwig Olson, and "Lugers At Random " by Charles Kenyon Jr.