Diners face off

Count ’em. One diner: [5117 4th Avenue, Sunset Park, Brooklyn, c. 1939–1941. From the NYC Municipal Archives Collections . Click for a much larger view.] And right across the street, a second: [5116 4th Avenue, Brooklyn, c. 1939–1941. From the NYC Municipal Archives Collections . Click for a much larger view.] Look closely to see the Y and D design next to the Yankee Diner’s entrance, “Colored…