Well I suppose that would explain the headset I tapped out being marked "OMAS Italy"
Sheldon's Headset Crib Sheet
http://www.sheldonbrown.com/cribsheet-headsets.html
Is saying the Cups are 30.2mm (same as ISO) and the Fork Crown race is either 26.5mm or 27.0mm.
additionally that crib sheet says "I.S.O or JIS Sized Headsets Can be Used"
Can I just get an ISO sized headset for the cups and simply use the Fork Crown race that I've got on there? (its in ok shape for now)