1947 Hobbs of Barbican Clubweight Build and many other old builds

Sorry to gatecrash your thread 7VEN but it is Hobbs related;
57Hawkes, these are the cranks, they are Williams from 1937? im guessing C34 which ran right through to the 1960s, half the weight, 46t replaceable chainring, a lot of club cycles were kitted out in these cranks. there yours for £5. its what i payed for them

Thanks for the cranks, Falcon Vitesse.
Now both cleaned up, as below, and the lesser double stripped of the inner ring and fitted to my Hawkes this afternoon, together with a near-mint surfaces TDC BB.