Old African knives

[Duccio]

I completely agree with Pieje, often what is defined as "patina" is nothing more than dust and dirt accumulated in the places where these blades were exposed; I happened to have a large Boa sword which had the handle covered with what looked like a flat brass wire (seen in the first photo). When I started a light cleaning, the brass turned out for what it was, a silvery metal: the golden color of the brass was just dirt, perhaps cigarette smoke ... (second photo).