The $25 NYNY NCV is a promotional chip given to high roller (or not so high roller) gamblers to get them to stay and gambler at the casino. You play the chip until you lose it. It, therefore, has a value of $25 (or almost $25). This is unlike what Monte Carlo does. At Monte Carlo you play the chip and its gone, win or lose. Value of $25 NCV Monte Carlo chips would only be $12.50 (almost $12.50).

I think I have a $25 NYNY ncv in the back of a drawer somewhere.

I believe I was given 8 $25 NYNY NCVs a couple of years ago.