none! strange. looked over the whole frame. nothing seems to have been stamped into the bb, colnago cutout is there, paint is scuffed but not so much that the shallowest of stamps would have been rendered invisible. it also has colnago stamped into both bottom rear stays.
this frame came with a lot of rabobank pro team colnago's, along with this one raced by former world champ and 5 time amstel gold race winner jan raas: http://www.londonfgss.com/post1121035-21219.html
serial number?
this frame came with a lot of rabobank pro team colnago's, along with this one raced by former world champ and 5 time amstel gold race winner jan raas: http://www.londonfgss.com/post1121035-21219.html