I rmember business cards used as players card in..
the 50/60's where my Dad would get a card with something sciblied on the back and we would get free food/show. I was always surprised to hear the suit greet my Dad as Oh! Hi! Mr. Mc Colum, when did you get in.
Also the El Rancho Vegas and other places had Business card printed up w/a line in the middle to fill-in the customer name.