I got this from from eBay (was listed in the eBay & CL thread). It was advertised as an 80's Rossin. I could tell it was older, wasn't even sure if it was Italian. I just received it. It has an Italian Campagnolo bottom bracket, cranks, headset, shifters and rear derailleur which I assume are original parts. It has Universal Mod 61 brakes, Suntour front der (I assume replacement), 27" wheels Rigida rims, Normandy and Maillard hubs. Stem and bars are Ambrosio.
The frame has what looks like Nervex lugs, Campagnolo dropouts, serial number 66A0164 stamped on the seattube. The bottom bracket shell is stamped 55, it also has a line of what looks like extra brazing, no cutouts.
First, any ideas what the frame could be? I see two holes on the head tube that look like headbadge holes. I have not seen any Rossin with a headbadge. Second, any idea what year? The serial number could perhaps indicate 1966? The steel Record derailleur is older than any I have seen, and the cranks have no date code.
Last, it came with a badly fitting 26.0 Japanese seatpost. This was clearly too small, and the seat lug was misformed. It looks like a 26.8 may be a good fit. Any ideas on how to re-shape this area without any further damage?