OK, so after an, ahem, ´spirited´ drive up to Friedberg, just north of Hessen, and the exchange of €10, a very dusty, dirty, slightly rusty but unbent Bottecchia was on its way to a new home.
As expected, it´s a Sprinter, and the model year is post-1986.
An unexpected bonus was a pair of Miche Monolithic clip pedals, attached to a Monolithic crankset. Anyone heard of this?
The handlebar is pretty nice, Carnielli - worth keeping, you experts?
Seatpost is, as expected, 26.2mm - nothing in the parts bin alas.
The drivetrain was Suntour Accushift 3040, and is pretty rusty.
The tubeset is ´Calibrated Hi-Ten Bottecchia´, so probably a half-step up from gaspipe.