hamster":3dpq4paq said:You could consider 650b if 700c is too big...
I'd think it was the other way round, issue will be with the brakes and ensuring that they have a enough drop to reach the rims of 700c (if positioned for 27").
Lots of general info here on bikes of that era: http://www.classiclightweights.co.uk
Specific stuff inc catalogues here (use F H Grubb button on the left: http://www.nkilgariff.com
You head badge suggests mid to late '50s.
I've got a 63/64 Tourmalet - will sort pictures later.