At the last gunshow that I went to, I found the following book: The Luger Snail Drum and Other Accessories for the Arillery Model Luger by Edward C Sayre. It seem sto be a good book. I am no expert on these but it seems to have a great deal of information. The price was $25.95. Published by Mowbray Publishing in Woonsocket, RI.
WWW.gunandswordcollector.com
I have no connection to the book or publisher but wanted to let others know about it. Any other opinions from someone knowlegable who has read this book?
Steve