A famous Old Russian vambrace, discovered during excavations of the ancient settlement of Sakhnovka, Middle Dnieper region. Sakhnovsky bracer is from the historical layer of the Mongol-Tatar pogrom of 1240, it was considered unique until recently. The most ancient European plate vambrace was found near the village of Sakhnovka, Kiev province. The specimen is confidently dated back to the first half of the XIIIth century. Europe got such devices only fifty-sixty years later. It’s possible to state the absolute superiority of European armor in terms of structural diversity, as there were no other self-reliant protective devices for forearms, except for plate folding vambraces. The Sakhnovsky find constructively consisted of two main parts, namely folds of semi-cylindrical shape. The main plate covered the outside of the forearm from wrist to elbow, slightly extending at its end. The plate is pointed on the elbow and is forged in the form of volumetric cup for better fitting. The inner flap called "cherevitsa" is approximately two times shorter and is connected to the main plate by means of two steel hinge pins. Both folds have a slight flanging around the hand to stiffen the construction and protect the hands from possible chafing by hard edge of the vambrace.