Restoration of an old, rusty pocket knife approximately 350 years old. Cossack razor. 

Hello!!! In this video you will see the restoration of a pocket knife that is approximately 350 years old. The knife was part of the ammunition of the Ukrainian wars of that period (Cossacks).
It was found at the bottom of the Kakhovka reservoir, which became shallow after a war crime by the Russian army, blowing up a dam. As a result, a flood occurred that claimed many lives.