Prior to 2018, the main office entrance was just north of the center bay along Broadway; the opening still exists but leads to a retail space. It contains a double-height limestone frame with a lintel above the second floor. The doorway is divided vertically into a large center section flanked by two narrower sections. At ground level, the entrance includes a set of double doors, flanked by a single door, all made of brass and glass. Above the center doors is a clock flanked by brackets. There are windows above the remainder of the ground floor, as well as another set of windows on the 2nd story. The ground and 2nd stories of the doorway are separated by decorative iron spandrels; the center panel has an oval motif. The spandrels contain other motifs including theater masks, instruments, and branches. The building's cornerstone is placed in a niche within the former main entrance. The cornerstone includes copper boxes with several newspapers' front pages, gold coins, film reels, and a news reel showing Richard E. Byrd's 1926 North Pole flight.