Got a used Ritchey Logic headset - think it came from the same Marin Team Issue frame that the stem came from!
In decent used condition - bearing surfaces on the top races are excellent. Bearing surfaces on the lower races are a little more worn, but still feel smooth after I've cleaned it up. There are about four ball bearings that have gone missing and fell out during the cleaning process (little feckers), and I don't have any spare of the correct size to replace them.
Pics attached - SOLD
Rossin Concept MTB 1990 - Full XTR M900
Litespeed Ocoee Titanium MTB 1992 - Grafton / Bullseye / Syncros / XTR
LeMond Z Team Issue SLX 1991 - Full Corsa Record / Sigma
LeMond GAN Team Issue GLX 1993 - Full Dura Ace (7400)