Information needed Peru bolas weapon

[Tim Simmons]

Solid stone no hole 481g or 1lb 1oz. So swinging fast the force would be considerable. I have weapons with wire on them from the turn of the 19th - 20th century. Also old hide and leather in very good condition so there might be some age . The Peruvian Andes high up the environment is cold and dry I believe, which would be good conditions for organic materials, as opposed to wet and warm.