It is 1960 and you are dining on a starched white linen table cloth with gleaming silverware, enjoying a choice of five appetizers, eight entrees, eleven vegetables, a dozen salads, seven  desserts. From the balcony comes the soft slow dinner music of Jack Lederer’s orchestra. You might think you are dining in one of Baltimore’s most expensive restaurants, but you are dining in a most modesty-priced Oriole cafeteria.  All six Oriole cafeterias closed by 1975 because management said, “the dining community preferred hamburgers and colas and eat and run.” Oriole cafeterias took pride in offering plenty of choice and their customers made one:  fast food over slow music.