It appears to be 3 phase, you realize that, right?
My shop is three phase. Ive dealt a lot with newer motors, but being only 29, I don't have much experience with things older than my father. The electrical world was a little more wild west back then.
I cant tell for sure due to the poor nameplate, but that motor is probably not rated for 208Y/120v service!!
It's marked 220/440.