I did an ebay search for "french campagnolo" and found several reasonably priced headsets. Now reasonable to me is like $60-$80 for a VGC vintage campy. Seems nuovo record headsets are commanding $100+ for good examples but there were some nice gran sports on there.
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1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear