This is a very odd edged weapon, it have been used until the 1930s when a man that lived in Sweden bought it or got it for free. the relatives don´t remember.
It have a “scabbard” of wood with copper in the ends and the inner ring have been adjusted with aluminum to fit better and this is aluminum from the 30s.
It have more names when it was spred to Sudan and Uganda, But this is a late 19th century mad bracelet that is like a razorblade in sharpness.
The opening is (between the copper) is at the outside ca 50 mm
The inner ring with the wood is 70 x 55 mm
The outside with the small wood scabbard is approx. 140 mm
In good condition – some rust but it have been used so I keep it that way.