Preservation Very Rusty German Helmet. Cleaning in Oxalic Acid

In this video, I will show full preservation of the German Helmet M42 size 62 from the World War II. This helmet has been in the ground for 77 years. As a result of the restoration, the original paint and the color of the helmet were preserved. No propaganda and extremism. Only history! The demonstration of Nazi symbols in my videos is not propaganda of fascism, Nazism, etc. They are demonstrated exclusively for historical and scientific purposes. Thanks for viewing!