1937 Transmission

[FlatheadEric]

I have a 1937 transmission that had some damaged gears replaced prior to me buying it.
Looking into the tail shaft area I can see the inner ball race and part of the ball bearing cage of the rear main bearing. Does transmission oil come through the rear bearing into the universal joint area?
I have looked at a "Typical 36-52 Toploader" drawing and it looks like the rear bearing is sealed on the inner side, but there does not seem to be a separate seal of any sort.