I am building up this colnago for someone and I was hoping to figure out the year/model. The components do not appear to be original, but are a mix of shimano 600, dura ace 7400, and 105. It does have campy dropouts. On the right rear dropout the numbers "R528" and "SLX" appear. There do not appear to be any other serial numbers. Here are a few pics.
Thanks in advance