J. Howard Mathews Firearms Identification, Volume 1, C1962, second printing 1973, 401 pages, Volume 2, C1962, second printing 1973, 494 pages, Volume 3, C1973, 730 pages. These books show light use with a few marks and stains on the jackets, otherwise they remain in excellent condition. This is the standard reference used by forensics labs, police departments and gun dealers. This set is seldom seen and probably will not last long. Free shipping.