More than likely from this page of rare stuff: http://www.classicrendezvous.com/Rarest/Rarest_main.htm
I have been looking for that rare PMP crank for years.
Steven Johnson, Shiloh, IL
Some place on this or my other computer I have a photo of a front
Campagnolo High Flange Low flange opposite side. Why such a hub was
built is beyond me. No a track hub if I recall.