This combat engineer’s demolition knife had been heavily rusted and worn. Corrosion covered the blade and fittings after years of neglect. Careful cleaning revealed strong steel beneath the oxidation.

Rusty pocket knife restoration. In this video, I showed the restoration of an old, rusty, handmade pocket knife. I think it's a trench pocket knife, but I don't know what period. Maybe WW1 or WW2. I ...