The Craftsman OEM list says that was made by Delco products or Paramount/alllegretti & company who continue the Delco design.
If you turn it over and look at the switch you can see if it's a single pole where it switches only one wire or a double pole where it switches both wires. If you then look for a switch that can handle a motor of that capacity listed on your name plate you should be good to go. Can't see enough of your switch to tell how that's mounted, but a rectangular panel seems safe.
Since it's set up for 115 or 230 volt you should probably get a double pole switch regardless of which voltage you are running.
The vintage machinery site
Shows a manual with parts list
And part #31 looks like your switch.
If you
Google that part number, an early result brings you back to GJ, (any good tool search brings you back here), where someone claims to have fixed his switch, which may save you from going nuts trying to replace it.
I posted my recent purchase to the block grinder thread but decided to post here as well, mostly to show the switch (PN 4984992) repair as I searched for similar repairs but only found one, and in that one the picture links were broken. Hopefully this will help somebody with a similar issue in...
www.garagejournal.com
Other links may tell you how others replaced it
It's amazing what you can find between bites of an apple