St. Georges Hall, San Mateo California

This is a little something that I collected from my Grandparents home in San Mateo, California. I've done some looking around the web for information on what this place may have been. I've even searched the city of San Mateo for info as well. Its a neat little piece, but I would like to know some history behind it. If anyone has any knowledge concerning St. Georges hall of San Mateo, please post. Thanks.