Here we have a large bulgin control knob from the 1960’s
1-5/8” wide at its widest part.
This will fit fit a 1/4” shaft, and fastens with a grub screw(Alan key - meaning this was 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