Boxford ATC toolchanger component

Does look like a late one.

Looks like a pneumatic power chuck too, which explains a lot of the extra wiring and possibly the small PSU.
Mine had one too ( and a pneumatic parts catcher), but I removed it and sold it to pay for a good standard Pratt Burnerd 3 jaw, as I don't do production work.

It also has mist coolant, as does mine.

I assume that the big black tube above the motor is a ballast resistor for the motor brake?

Does it have a tailstock? I have just had to make one, they are as rare as hens teeth.

Well worth the money, you have all the raw material there, just requires rewiring, but does your friend want to do the work involved?

regards