Matthew,
As others have stated, it is an early Chris King. Here is a page with some of that early history of the classic days back in Santa Barbara. Ah, yes, the Chrises era-- Chris Pauley frames-- very early constructeur-sort, shop out by the airport, outfitted with home-grown headsets from the medical instruments-turned headset-maker, Chris King. Here is a page with some history:
http://www.completesite.com/
Enjoy,
Ken Wehrenberg, Hermann, MO USA (still sometimes SB, CA)--my Eisentraut "A" has the exact HS!