I would stay clear of that one. The corrosion on that bike is quite significant. I would bet the seat post and stem are both frozen in the frame, and the components are pretty rough too. Honestly, it looks like it was pilled from the river. As for the model - I can't answer that. But I see what appears to be a silver Columbus decal, which is usually used on the lower end of their tubing line. It's a shame the bike went unloved for so long.
Bottom line - keep looking.