A833 Factory Paint Markings

I can't see the stampings on the pad BUT, I'm curious if the two cases marked 872 are the same year. If so, maybe the 872's had same ratio and main shaft, bearing retainer, etc. I'm also wondering if Govier's White Books shows part numbers.
None of the ones I posted have a Vin number. They came out of Rod Shop years ago. All were new transmissions that were cannibalized for parts.