This is the first English language work to examine the subject in detail and the first in any language to identify, describe, and quantify variations and production figures for the models covered. The book focuses on the Czechoslovak Communist period (1948-1989), but reaches back into the 1930s in order to trace the history of the 6.35 mm Duo pocket pistol, which remained in production under the name "Z" until 1974 with a total of thirteen distinct marking variations, and the 6.35 mm model 1945, which had its beginnings as the model 1936. The 7.65 mm model 50 police pistol and its successor, the model 70, are covered in depth, documenting both marking variations and a significant number of design changes introduced during their thirty-three-year production life. The 7.62 mm model 52 Army pistol is given extensive treatment based on data drawn from over 2,000 specimens; in addition to descriptions of both standard and rare variants, significant discussion of the pistol's mechanical characteristics and potential safety problems is presented. Also covered are the more modern commercial CZ 75 and CZ 85, the military model 82, and the commercial CZ 83, as are small caliber target pistols and signal pistols.