Here we have a large bulgin control knob from the 1960’s 


1-1/2” wide at its base 

This will fit fit a 1/4” shaft, and fastens with a grub screw(Allen key - meaning its MOD stock) and is fully functional 

Perfect if you want a large knob for your one knob fuzz!

If you have any other questions just ask 

These were also used by the RAF

I do have another similar one of these if you need 2x (see my other listings)