Tony Taylor asks "...a 1955 Hetchins with all period appropriate equipment. I need a headset. Does anybody have any guidance on what would be appropriate...."
The 1955 Holdsworth Aids to Happy Cycling catalogue lists these headsets:
Stronglight Competition (V races)
Gnutti Decagon
Gnutti Extra
Alatet (Continental pattern with decagon design)
Brampton
Chater Lea
The 1955ish Ron Kitching Everything Cycling catalogue list some of those and also these:
Stronglight P3
Lightrace
This Ron Kitching catalogue and many others are available as copies throough
Chuck Schmidt's Velo Retro website at http://www.velo-retro.com/
Peter Brueggeman
La Jolla California USA
4peebee(at)peterbrueggeman.com