thank you guys! here are some additional photos. I can try measuring the seat post but have no proper tools unfortunately... in the morning I will try to read the bottom bracket labeling. The lugs are exactly as you said - Nervex Pro, except for the head ones, they seem to be Nervex Legere design 45 according to http://www.classicrendezvous.com/Fra...ere_series.htm I've never heard of Nervex before to be honest.