My early-80s Super Record equipped Gianni Motta weighs in just above 19lbs (sans bottle cage). Don't have any good pictures at the moment. And haven't weighed it in probably 20 years. That was with silk racing sew-ups on it. Right now it has a cheapie carbon fork on it while I get the steel for repaired - that's probably a bit lighter but the mid-section aero rims I put on when my Fiammi Gold Labels fell apart might weigh slightly more than the golds. Maybe not with modern tech and all. Unless I was racing really seriously at a high level, it wouldn't make much difference. I'm lighter than the average dude so that more than cancels out the 3 lb difference.
Chris