Hamburger connoisseurs will smile with joy upon walking in the door of this minuscule, 8-stool diner where itsy-bitsy burgers, known to some as sliders, are served at fifty cents apiece (fifty-five cents for a cheeseburger). The burgers are served on small buns, with small squares of cheese, if desired, and with mustard and/or relish for a few cents extra. Six or eight of them make a nice meal.