At a local boot sale yesterday, I came across an interesting 'box' of bits.
Having purchased same (£15) and cleaned up I found nearly all of a fine feed attachment for my Cowells lathe together with a leadscrew, apron, feed nut and handwheel.
It didn't take long to set up the fine feed gizmo.
But there is one missing gear. The ones I've got are a 64T and a 56/20 cluster and I'm not sure what the missing one is. Some research is required!
One advantage of a Cowells sized lathe is that when you drop a collar into the clutch housing and it falls out of reach into the base casting of the lathe, at least you can pick the lathe up, tip it over and give it a good shake to get the collar out again!