Any Info About This Token?

My sister has just confirmed my suspicion that the husband of my Great Aunt Rose was a police man,
in New York City. They lived in the Bronx.
Submitted for your opinions is the following:

A token from a prison in Manhattan, New York City.

Any ideas, opinions, guesses as to what it is would be greatly appreciated.

And, is the incuss [ incuse ] a way of, how to say, demonetizing it?
[Gosh darn it, the spell check was no help!]

I have had it for, maybe 40 years now.