[David Perrott]

Hi all , need to id a couple of tachos i picked up recently , made by Stewart Warner 3 to 2500 rpm , from 21 to 2500 rpm is marked in red , has the number 424 CH N6 stamped onto case in ink and the number 63900 cast in the rpm cable drive stem , olive drab rim with a u clamp and 2 wing nuts to lock into dash.

cheers dave