I've looked for hours online for a cap and rotor for my Mallory Dual Point Distrubutor. NOS ones don't show up very often. So, I sat at NAPA and looked at the Echlin picture book for a half-hour. They actually list the cap and rotor as for the Mallory ZC and _C distributors. Neat. So, without further adeu:
Echlin
Cap: MA5
Rotor: MA7
Enjoy.