The Blue Book of Antique American Firearms and Values features 400 pages of nearly 700 manufacturers/trademarks identified with short histories and dates of manufacturer. There are over 2,100 high-resolution color images (many detailed macro shots) helping to quickly identify the models/variation. There are over 7,500 values covering Good, Fine, Extra/Very Fine, and Excellent condition factors. A color photo percentage grading system (PPGS) is provided, allowing the user to quickly ascertain the correct antique condition factors. Three thorough indexes making it both fast and convenient to find information on your firearm. Important terminology is not only described, but shown in the Anatomies of handguns, rifles, and shotguns. Additionally, a complete glossary and abbreviations section are also included.