What's this all about? Dual pickup electronic distributor?

To be honest with you I will have to say that it is mechanical too.I ain't climbing in the engine compartment to look.
The year 1988 for Dodge trucks over 8500 gvw still had a carb, NO cats and no computer.
I got in a pissin' contest with slantsixdan about this long ago.He said there was no such thing. But here I got one.