1993/95 Colt Model O Armorer's manual which measures 8-1/2" x 11" with 52 pages CONTENT: It is dated "Copyright 1993" and also marked "CM 121 Rev. A 95".The introduction states "This manual is intended for the training of law enforcement armorers....".The information pertains to "O" model pistols based on the series 80 design. Excellent condition