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.
One fairly complete small 4 cylinder engine, probably made before 1920, no detachable head & adapted for marine use, in reasonably good condition. It could be an engine for an early American cycle car, we would love to find out.
Broken down. Not working. Could bake a working engine from the 2. Found in grandfathers / uncles garage along with large amount of other de Dion parts..