No doubt this is a Brunswick-Balke-Collender Co. check (token). They were the sellers of billiard tables and bar fixtures, so many saloons and pool halls had tokens supplied by them. The other side, the obverse, is the one of interest. See what else you can read there besides Central Bar. Many, if not most, Brunswick tokens are mavericks, meaning they don't have the town and state on them. There was a central bar in a lot of towns, so hopefully you can see something else. Maybe taking another photo with a flashlight or some light source coming in from the side to highlight the letters would help.
John in the Great 208