Well you have to figure out 1967 vs 1968 for a starting point and where the frame or bike was distributed and if sold as a whole bike or frame and what parts were in stock with those distributors at the exact time and if a frame, and if the racers liked to put older parts on it ... And track bikies were very partial to their collection of 151 rings and had no use for anything below 44T etc. As of 1996 I knew a shop near the Blain MN velodrome where you could get rings milled to fit either BCD!
By the way I wish I had this dilemma as to how to fit the Pog. And as a further aside, there was a Pogliaghi loaner track bike in the trailer at Blaine at that time and people know it was cool and no one poached it. Guys like John Barron were there, who I presume knew what it was and what better purpose than to be at that spectacular track doing its appointed duty. That trout just got returned to the stream. For at least a while I presume.
Joe Bender-Zanoni
Whitneyville, CT
Finally getting around to building up my Pogliaghi Pista serial # 9606 (For clarification my frame is NOT the f/f for sale on Ebay several weeks ago though is similar). Assuming my dating is correct and please if someone believes it not to be let me know, I am needing to ascertain what Campy pista cranks and chain rings are period correct; 151BCD or 144BCD. Luckily I happen to have both on hand.
Jason E. Osborne
Medford, NJ USA