letters on white tablets over a green trim line. This is where the platform was extended in 1964–1965. There is a narrow full-length mezzanine above the platform that has mosaics pointing to, and connecting, all four station entrances. Exits This station has four sets of entrances/exits. The first exit is at the northern end of the station. It has a customer assistance booth with a bank of turnstiles and long passageway to a set of doors leading to the basement of 28 Liberty Street. A wide staircase leads to an entrance/exit at the east side of Nassau Street at Cedar Street. This entrance is only open on weekdays and also provides access to the Broad Street station () and the Wall Street/Broadway station (). The second exit, also open weekdays only, contains a bank of turnstiles and passageway to a spiral staircase that leads to Pine Street outside 60 Wall Street. The passageway has an artwork called Subway Wall by Harry Roseman made in 1990 and installed after a 1993 station renovation. This exit also has a set of doors to two escalators and a double-wide staircase that go up to the public atrium lobby of 60 Wall Street. This entrance has two red globes and overhead signs, giving the impression of an outdoor station entrance built in the lobby. The third exit was the original entrance to the station and is staffed full-time. It has a bank of turnstiles and staircases to both northern corners of William and Wall Streets. The entrance at the northeast corner, outside 48 Wall Street, is made of ornate metal and has a sign reading "Interborough Rapid Transit Co-to All Trains." The last exit is at the south end of the station, which leads to the same intersection as the third exit but is in a separate fare control area. A single double-wide staircase from the platform leads to two HEET turnstiles and two regular turnstiles. Staircases lead to both southern corners of William and Wall Streets; the southeastern corner exit is outside 55 Wall Street. This exit, though open at all times, is unstaffed as there is no token booth. A fifth exit, which led to the southwestern corner of Pine Street and William Street, was closed after April 1992. An exit to the northeast corner of the same intersection was removed and slabbed over in 1948. The northeast-corner exit had been closed