I recently won this on ebay and after making the short drive to pick it up, I found that the frame had some damage. The seller and I agreed on a discounted price and I brought it home. The bike was built up with a combo of old Campy NR and Suntour Superbe. Tubing appears to be Columbus Aelle, with a 26.8 seat tube. The frames seems to have taken a header. There is some slight rippling under the top and down tube. No damage, that I noted, to the fork. The down tube seam looks like it separated, it doesn't move when I apply force to it but it looks almost crimped.
From what I could find during my internet searches is that this frame was built, or maybe contracted by Colnago. This link shows a similar SL version, http://bulgier.net/pics/bike/Catalogs/colnago/03.jpg. The lug work is nice and looks "Colnago-esque" on the seat cluster and head tube joints - but the bottom bracket area is a little rough. Frame weight isn't to bad, but the fork is very heavy. Serial number "51" stamped on the rt. rear drop-out and also on the steer tube.
Is it worth saving? I haven't found many pictures of them around and wonder if the repair cost would greatly exceed its value. Your thoughts would be appreciated.