In going through some of my spares today I found an early-ish Campag NR headset. From John Barron's web page I make her out to be a 4th generation. Does anyone know the approximate years that this one was manufactured?
Mine has all the earliest features (cut and pasted directly from John's website): "4th version- 4.5 version and 5th version- cups with lettering in a channel CAMPAGNOLO ITALY BREV. CAMPAGNOLO ITALY BREV. with or without <C> on the bottom cup; (with <C> is earlier) plain hex top nut that has 4 lines interspersed with the lettering on it, (earlier) or no lines, (later); a crown race with a rounded bottom, (earlier), or crown race with a squared bottom; plain stamped toothed washer. The words on the inside of the adjustable cup are slightly different, for example earlier versions will say, "ENGLAND" on one end and "1" x 24tpi" on the other end. Later versions will have an adjustable cup that says inside, " 1" x 24tpi ENGLAND" on one end and "Made in Italy" on the other end. Also, the collar of the pressed races, (the part that goes into the head tube) has lettering on earlier versions, and no lettering on later versions, (thanks J. Westerman and hi.campy)."
Thanks in advance,
Eric Elman
Somers, CT USA