HELP! This is a puzzle

[Grampy]

Ran on Tues - not on Wed. Nothing changed between times.

Wiring has been checked by two different knowledgeable people. The wiring is correct and connections are tight.
Timing is right on and point gap is .018. Rotor to body contacts is .025 and even at all four contacts. Plug gaps are .035.

Here's the catch - spark to the points, but not to the plugs.
Could it be the coil or the condenser - and would they fail just like that?

Remember, it ran one day, but not the next.
Any help, thoughts, or experience would be greatly appreciated.

Thanks,
Tom