1111170 distributor question

[JRSully]

Ran across this 170 Distributor in the stash and it has a small, funky 2 lead box on it, wondering if it s something to do with a factory Transistorized ignition or is it aftermarket.? The p/n codes as a 68 SHP BB distrib. Thx in advance to the experts

[John Brown]

Magnetic pickup conversion. You can just remove it.

[L_e_e]

Looks to be a Pertronix or similar brand electronic conversion.

[big gear head]

Yeah, looks like an old Pertronix.