Starter Question

[Qtown Ed]

I'm currently going through all of my assorted parts to get things organized for putting my 69 L78 back together once it comes back from paint out at Micky Hales and noticed I had two starters. The original one was in a box of misc parts. I'm trying to figure out what the starter that was in it came from. It's a Delco Remy 1108507 3H63 (Date code 1963). I'm assuming its obviously a big block starter since it came off my 396 but does anyone have any idea what its from originally?

Ed