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Is it an anvil?

Too little moving parts.

Bench grinder?

I once cut deep into my thumb with one of those, nearly sliced it off. Still have the scar.

Edit: actually that was a table saw, not a grinder.

Not a bench grinder but a dangerous machine.
You are very lucky with your finger, Saws can be very unforgiving, I have a friend that cut the side of his hand off including his little finger. I'm actually amazed at the job they did trying to fix it, it now looks like the hand of a Disney character.
They invented this a couple of years back for this reason.