Canada- in North America- we give both all c to c and center to top- the top of the top tube on vintage bikes can be curved etc which can through off measurements
Hi- so is it 58 or 59 from the center of the bottom bracket to the center of the top tube (the way we measure over here). If you can draw such a fancy diagram you should be able to measure center to center-cheers.
no problem - I guessed it would have been a mistake to deal with you anyway- you never did reply to any of my pms.