Early 833 ID???

I picked up an 833 from a fellow FABO member

I was looking over the ID number but didn't see a raised plate like the later 4 speeds have is this common? I think this is an 64-65 unit so I do not know if they were marked differently

Numbers i found were

Tail shaft - C-95658-G

Main Cover C-95664 J

Pass side Body C-95639 U

Can anyone decode for me?

Brad