Can you help with starter identification?
That's the pinion housing for a '62-'69 starter. Originally it would have been mated to a motor housing stamped 2095150 or 2098500.
The pinion housing and brush plate were redesigned for '70; depending on your car's build date you're looking for a pinion housing marked 2875553 or 3755259, and a motor housing stamped 3656575 or 3755900 (respectively) if you're trying to be dead-on-balls, numbers-matching correct. But there are a bunch of other motor housing stampings that originally got mated to a 3755259 pinion housing, too, if you're not worried about a show judge deducting points because your starter motor doesn't have the correct number stamped on the motor housing.