Ted,
Interesting that you mention these cranks. I have an old track bike
with all original equipment (?) dating from 1959. The the odd thing
about the Campy Pista crankset is most (not all) of the chainring bolts
are black anodized. No question in my mind that they are anodized and
not painted. I thought that it might be aging or an anomaly or
something. But....your crankset makes me think they were, in fact, made
that way and somwhere along the line something got changed. I'm sure
about the cranset date in that it has raised pedal lips.
Edward Albert
Chappaqua, NY