Actually the lugs are different. Time to call on the Sherlock Holmes of Colnagos, AndyP
Morelike Dr Watson.
Not all Colnagos have chromed head lugs, this much I know.
R-d-C's frame is interesting. By the looks of it, the rear brake cable is externally routed, it has straight forks and, as we know, has the unusual non-Gilco profiled tubing. I'd speculate the the fork is not original. The straight fork was introduced in around 1989 but internal rear brake cable routing was, I think, the norm by then for the higher end frames at least.
Not all Colnagos have chromed head lugs, this much I know.
R-d-C's frame is interesting. By the looks of it, the rear brake cable is externally routed, it has straight forks and, as we know, has the unusual non-Gilco profiled tubing. I'd speculate the the fork is not original. The straight fork was introduced in around 1989 but internal rear brake cable routing was, I think, the norm by then for the higher end frames at least.