Posted By:
ShawnDave,
This may seem crazy... But here is a link to a "theatre forum" and all they talk about is theatres! I found where someone is looking for info, photos, etc. on the Benn Theatre because it is going to be restored. You may contact this guy and get more info on your card or he may be interested in what you have? You never know.
http://forums.cinematour.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=3;t=000005#000000