Lakeview: nice looking block. 1/3 split phase or do tell?
also there is a giant thread where the BLOCK grinders usually get posted that might get you some KUDOS. post it up over there and that thread should always be at the top of the list cause members post on it almost daily. here's the link I just looked up for you so you can post yours and have a fun read about your new 50+ year old grinder.
https://www.garagejournal.com/forum/showthread.php?t=157794&highlight=craftsman+block+grinder
also more pics and more details will get you more information about your block if you might want some.
nice find!!