Regarding the rules of the Road time Trials Council these were still being strictly enforced well into the 1960's. Many fell foul of their rulings, photographs in "Cycling" with visible makers transfer shown etc. One poor bastard even got done for wearing a trade hat sitting on a float in a carnival parade! Don't believe me ask George Arnot North Road CC, RTTC Council and RRA course measurer (BY BICYCLE). They saw the picture in a local newspaper of this guy in the hat and reported it to the RTTC they refered it to the local council of which George was a committee member and they duly find and banned him as per rule. I am sure they didn't want to do this but it was written in tablets of stone back then. Hilary is 100% correct in saying that the funny frames were about but where he is getting totally confused is on the ruling of showing manufactures names, that's where the funny frames came into their own no visible makers transfer to fall foul of the rules but you know instantly what the cracks are riding. Hetchins even supplied the predominately Jewish Allondon RC with bare metal Curlys (Vibrant stays) for the Bath Road events. No makers names on machines or clothing and bonk bags.
Thats all for now. Keep those wheels spinning, in your memories if not still on the road. Be lucky Mick Butler Huntingdon UK.