Baker Iron Works Hoist Machines

I've got a property we are working on that has some really old hoist machines made by Baker Iron Works.
There is a small leak near the shaft and was wondering if anyone had information as to what type of seals these machines use.

you will probably get more help posting under a different part of the forum this is mostly people looking to get into the industry

Thanks captidgas, I agree after looking at the threads posted here I am posting in the wrong area.