After some date in the late 60s, as I recall it, the Columbus tubing of the classic era was readily identified by looking down the steerer tube. It had a few spiral ridges that stuck up and were supposed to reinforce the tube.
In the bikes I've examined, a very small sample, the Columbus "bird" logo was stamped into the down tube, a couple of inches below the head lug, and generally faced up. This was done to identify the short butted end, so it would not be cut -- everything was to be taken from the other end.
Would I scrape mine to get the bird? Not if I had a Windsor! harvey
At 11:43 AM 9/29/2000 -0400, Cyncrest@cs.com wrote:
>Hey Classics,
> ANybody have a Windsor?......Need a couple of questions answered.
>
> Thanks for all the help. How do I tell if it is Columbus tubing?
>
> Paul G
> Riverside, CA