http://www.wooljersey.com/
Got the frame at the above link yesterday. Norris Lockley has ID'd it as Carre built. Based on the weight and seatpost size (26.6mm), it is likely all 531.
How does one identify a true pista headset? All I could glean from the archives (and some other sources) is that the bearings were smaller and hence (I am guessing) the races would be different. Any more obvious ways? I kind of doubt the headset on the bike is pista.
Thanks
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Lynn Travers
Hazelwood, MO