A833 maincase decode

Hey fellas, I've just managed to pick up an A833 over here in Australia for my 4 speed conversion. I havent picked up the tranny yet but the seller has sent me the following info re: stamping:

"maincase is stamped H3 over top of
> 097622 Tail housing C98708H (maybe not 9 or H, but I think so) Side
> plate: C956842 and the date stamp 3-29-68"

I cant find any info on the net to decode the above codes, would be particularly interested to know what the maincase stamping translates to.

Anyone?

Cheers.