Hey all. I'm helping a friend of mine date a Bottechia frame he has. The serial number is 250515 and it's placed on the seat tube, I'm still trying to get a few more details from him, but I believe it was mostly campy (I know that is sorta' vague).

Another "no duh" factor is that on the underside of the stem it has the following engraved:

Robert M. VanS**** 4-20-72

While that is a good indicator of the era, since it's on the stem, I can't trust that for the exact date of manufacture.

Any ideas?