This fascinating collection compiles six authentic silencer catalogs from the early 1900’s. Included is a lit of silencers and their cost for the time period, how silencers work, first use of the “Maximum” silencer in actual war and how rifle barrels are threaded to attach silencers.. This volume is both nostalgic and informative. Most information is from the original manufacturer. 5.5” x 8.5”, over 70 pictures, 52 pages, softcover.