My Malagnini (in the KOF category) has a no bolt seat cluster
http://italiancyclingjournal.blogspot.com/
Angel Garcia Verona VR Veneto Italy
http://cgi.ebay.co.uk/
This top-of-the-line gas-welded and hand-polished frame has a few things i've never seen with an on-topic frameset, such as : (a) An intentional no-bolt seat cluster, the seat is attached with an expander bolt, and (b) amazingly executed and profiled joints, especially for the head tube joints.
All told, the frame looks as if it were chromed, but its all polished aluminum alloy. If you believe gary klein, this will fail because it was not annealed to stress relieve the frame after brazing, but until that day comes, you've got an 18.5 lb masterpiece with polished mavic ssc componentry.
- Don Gillies
San Diego, CA