I couldn't resist and brought it home today. Maybe it was the Dutch accent

It is the "Professional" with 531 frame and fork, Full Dura Ace groupset front to rear incuding headset, seatpost, shifters, and stem. Sweet.

East Hill, I did a quick measurement at 49.5. I plan to strip it down this weekend will get some pictures and some more exact measurements.

The guy also had a set of really nice Mavic (red label) tubular (forget the model but tubular equivalent of MA-40) wheels with Campy Record hubs, very lightly used. He wanted $70 for them and also had a well used set of the same. I shot my bike budget for a while and don't run any tubulars so I passed .