1992 NORTH WING, GROUND FLOOR, STEAM ENGINE WHICH POWERED ELEVATOR. "OTIS ELEVATOR. CO. N.Y./CHICAGO. SIZE 22. #L75078"
1992 NORTH WING, DETAIL NO. 1 TO STEAM ENGINE
1992 NORTH WING, DETAIL NO. 2 TO STEAM ENGINE
1992 BOILER ROOM, ENTRANCE
1992 BOILER ROOM, FACE OF THREE BOILERS
1992 BOILER ROOM, SUPPORTS
1992 BOILER ROOM. VIEW ABOVE BOILERS