There could have been any number of El Cortez gambling joints in the US. That does not mean the chip is not Las Vegas.

Do you know when the chip was made?

If it is early; early-1940's, did they have at least 5 wheels (assuming it's a wheel chip)?

Why no monetary unit (assuming the 5 is a denomination)? I have no idea... nor do I know the purpose of the chip (game?).