Early Discs? Not mine on CL

Not mine but I did post it. I'm no expert but thought someone could use this stuff.
Ya, that's ok, but these days the 70-72 spindles aren't that desirable anymore, due to the availability of rotors needed for those spindles, due to cost.
But in the guys picture, it appears that one of his calipers is the "wide mouth" design which was 1970 only.
And those are high $$$$$$$ items, these days.