No Electronic box in pointless distributor

It's a May 6 Bulletin that describes a running change. So whether your car came with it needs more research.
https://www.hamtramck-historical.com/1971-Dodge-TSB-Index.shtml https://www.hamtramck-historical.com/images/TSBs/1971/D71-8-9 Page 1.jpg

The distributor is missing the vacuum canister and the p/n does not match the TSB's

The purple wire out of the wrap seems out of place and would follow that to see if it turned up something.
An ECU could ahve been placed in some unusual location. Sometimes hot rodders/racers will move a unit - whether it be a Chrysler type box or something else.

Follow the pickup wires if you can.