Thanks for the responses guys!
The model / serial numbers are: ESC030ABN 24 SV 083 and N539187.
Armature looks pretty good for a motor it's age, I've seen a lot worse anyway. Brushes seem to move free and spring back well enough. All four brushes are about 5/8 to 3/4 inch long.
Swoop: I sent you a PM with pic of contactor... I don't see a lebel indicating a manufacturer on the contactors themselves, though the SCR and the whole panel have General Electric labels. How can I identify them?
I appreciate your help!
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.