Quite difficult to get a C&V steel bike much under 20 lb.

My lightest C&V steel bike is 18.7 lb. That is a 753 frame in 58 mm, all Campagnolo Super Record group except shifters, super light tubular rims, very light tubular tires, alloy rail saddle, titanium quill bolt and alloy expander in stem, hollow pin chain, Benotto tape.

Might be able to take 1.0 lb off with lighter but still period components, more Ti fasteners, alloy cable housing, cutting stem and post short, alloy body freewheel. I'd like to get it below 18 lb. But you can see that I'm scraping the bottom of the barrel as far as weight reduction measures go. $/g is getting silly.