Mornin' all. This damper knob came with the rolling chassis which the owner planned to make a cafe racer from. It had clip ons but I intend putting ordinary bars and the knob fouls the bars.
They were popular with RGS/Goldie owners and I thought someone might want it before I put it on Ebay.
I am told that £50 is fair as it is good original condition, It has been standing for over 50 years in a dry unit. The thread is fine.
Pics below.