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.
8 lockrings for Firestone rims. Rings were used to make the rims universal and to fit either beaded edge /clinker tires or straight sided tires (sizes 32 x 4)
(Sorry meanwhile all but one of these lock rings have been sold to the UK)