"During renovation of the club, several bullet holes were found in the ceiling as well as a complete wire service that dates back to the 1940s. Hidden behind false walls and floors, the wire service allowed bookies to get immediate sporting results. Despite being illegal, gambling was big business until 1968 when the Ohio Club was raided for the last time."

http://www.travelbase.com/auto/localview.cgi?article=469

Some pictures:
http://asms.k12.ar.us/armem/99-00/LoganD/