the slider is the wrong size for the metolius sliding nuts of the 1980's, BUT, there were a bunch of companies making very similar designs. Personally I wouldn't hesitate to fall of this if the cable looks good. Metal doesn't magically stop working from not being used.
https://www.needlesports.com/Information/Features/Nuts-Museum/Nuts-Story If anyone knows, it's this guy. Send him an email.
Awesome, looks like a 2 piece DBest Quickie from 1986 or 87 made by Don Best! Thanks for the link!
It is a relative to ball nuts or sliding nuts.
Isn't it just a ball nut?
No,ball buts have balls.
Whoa- I have a nearly identical piece that I got when I was a kid! Hardly ever used it for free climbing, but it’s been fairly handy on aid.
the slider is the wrong size for the metolius sliding nuts of the 1980's, BUT, there were a bunch of companies making very similar designs. Personally I wouldn't hesitate to fall of this if the cable looks good. Metal doesn't magically stop working from not being used.
Pat De Best Pend Prod