Thanks to
P!N20 and
Old Fireleg for all the helpful info. Also--and I don't know why I hadn't noticed this earlier--but the sticker is a tretubi one. Plus the wrong sized seatpost was used. This is a 26.8 which likely makes it aelle tubing (or perhaps cromor?). The sticker does not say aelle though but columbus stickers are a bit of a mess.
Also could columbus SP take a 26.8 seatpost? I've seen one bike with what I am fairly certain was columbus SP that took a 26.8 seatpost.
The bike has all the nice details of a classic Pinarello. The fork has nice reinforcement tabs. My guess is that the fork and stays are Falck or something else pretty decent quality.