Rolls Royce strong/weak carburation adjuster for on steering wheel. For 40/50HP Rolls Royce. Numbers on back of casting difficult to read, I believe it says 7 71AT1. Teeth in good condition.
Original Molsheim Bugatti Schraubstock Nr. 52 (Matching Numbers!)
**Historisches Meisterwerk der Automobilgeschichte: Originaler Ettore Bugatti Werkstatt-Schraubstock („Bugatti Vise“) aus den 1920er Jahren – Matching..