I sure don't know where that could have been used in Roseville. There were a number of card rooms around town in 1960 but I don't know how to connect the MAB to any of them. Its too bad that the records from back in those days weren't maintained. Allowing card rooms was a "local" option back in those days so the records were maintained by the county or city and in most cases they were purged after a few years. Roseville was a pretty small town in 1960 - population was only 13,421.