I have for sale 46 polished aluminium gear knobs, measurements taken from an original knob (1969 2000TC, MANUAL). They are polished and bored to 5mm, ready for tapping (1/4 UNF 28 tpi). The price is 20 Pounds per knob (including p+p to u.k.). I am happy to sell as a job lot at 12.50 per item...