By accident (gotta learn to look at all three dimensions), it seems that I bought a pair of NOS, but slightly shopworn, Campy track chainrings (for 1/8" chain, not 3/32). These are the later 144 mm BCD circle, in which the bolt hole edge is < 1/8" from the web inner edge.
Back when we were young, trackies rode 151s -- or cottered cranks. And we lied real good back then
So, I'll sell them.
It seems that $50 each is a reasonable asking price, including shipping in the US by Priority mail. Would trade one for a good or better "steel" record derailleur for one, and would consider other trades. Like pedals that are "right" for my '38 Paramount. Would love to find a really nice helicomatic example, as eye candy. Or, ???