sentences:  Behind the main entrance doors is a vestibule of glazed wood and glass.The marble floor, white with grey veins, is complemented by a six-foot high (2 m) dado of the same material around the room in which post office boxes are set along the south wall next to a single large customer window.Marble is also used for the pilasters supporting the segmental arches that give into the alcoves at either end of the lobby.