I picked up what I think to be a steal-of-a-deal today. The frame has the remains of Columbus tubing decals on it, however it lacks any other identifying stickers. The bottom bracket has a four-digit serial number. There is internal cabling into the top tube for the rear brake. Finally, the seat cluster is lugged, but the seat stays appear to be very smoothly welded into the lug so that there are no lines that show through the paint.

Pictures of the bike are to follow, it's in the shop right now for light maintenance, but any help you guys can provide would be much appreciated.