I recently aquired this frameset from a friend and was hoping someone here would help me confirm the manufacturer. The down tube seat tube and head tube decals seem to be original, however the Campione Olimpico '84 Campione del Mondo '90 decal I'm pretty sure is not since the frame is surely older than that. The serial number on the bottom bracket shell (B1878176) and on the fork tube (176) leads me to believe this frameset is from 1976.
The track ends are not marked, but the fork ends are Campagnolo. The bottom bracket shell threading is Italian. Size is 56 x 56 center to center. There is no clearcoat over the decals, but that wasn't common on old Italian frames, right? Frame doesn't appear to have been repainted. Oh, and the seat cluster lug is threaded on the left side, so only needs a normal M6 bolt.
Also, if this is a Pinarello, would these have been the original decals? Would it not have had a Columbus decal somewhere? Here are the pictures:
Thanks in advance!