How do you know this chip is an A.C. issue? Not saying it is not, just wondering where you got the attribution?

http://www.ebay.com/itm/New-Jersey-Atlantic-City-Tropicana-2-50-NCV-snapper-/282304208162?hash=item41baa45d22:g:yDsAAOSw6DtYYV9o

I note other denominations of similar style listed/illustrated in ChipGuide attributed to Las Vegas, but the only one listed in Chip Guide for A.C. is the image that you have submitted.