Anyone ever disassemble a distributor - need help

Points distributor. Converted.
'72 360, Dodge Truck?

FWIW
'71 Plymouth FSM only has 2 bbl 360 listings - and they have long advances, 14-16*. With initial timings 2.5* BTC. It has a fast and somewhat long initial advance so off-idle the timing will be where it should be for power and economy.