regarding the serial number on the bike, Pogliaghis 10000 to 10999 have the prefix *D* stamped in the number to denote *10,000* Hard to figure why he did that, but he did. *D* short for Italian for *ten* but still, why not just stamp in a one and a zero? It does save a step, maybe that's all it was.
The serial number on this one dates it at 1973-1975..
Charles Andrews
SoCal