fourth stories were meeting rooms as well as space for the Commerce Club. This portion of the building contained the library, president's room, committee rooms, and offices. Much of the furniture was colonial in design. The president's room was more elaborately decorated than the other rooms on these levels. Following the 1922 renovation, the fourth floor contained an oak-paneled elevator landing and vaulted stair hall. The ceiling of the fourth-floor elevator landing had three octagonal allegorical reliefs depicting commerce, industry, and transportation. The original library on the fourth floor became a banquet room, while another story with a library and committee rooms was added. During the 1991 renovation, the third and fourth floors became executive offices for the International Commercial Bank of China, while the top story became a cafeteria. Great Hall The Great Hall, the building's main room on the second story, has floor dimensions of with a ceiling high. The lower part of the room was not designed with any windows because the Chamber's massive portraits were to be hung in that area. The upper part of the main room, above , contains the oval windows of the facade. The walls are topped by elaborate multicolored decorations such as cartouches, wreaths, swags, and horns. The ceiling has a skylight at its center, surrounded by a gilded coved ceiling. There were nearly three hundred portraits in the room at its peak. The portraits included those of John Cruger, the first President of the Chamber; Alexander Hamilton, a Founding Father of the United States; and Ulysses S. Grant, the former President of the United States. The paintings dated to 1772 and were generally only of deceased individuals; the Chamber did not remove portraits once they were hung. The collection was also generally viewable only to Chamber members, but the public was occasionally allowed inside the building. Many portraits were removed in 1979 when the Chamber moved out. The collection was broken up, with some portraits being donated or sold. The floor had a "large and beautiful rug", which covered almost the whole space. The custom carpet, measuring , weighed and had to be delivered in a custom crate. Part of the building's outer wall had to be temporarily removed so the carpet could be put inside. The original floor surface was made of marble, although it was covered with a plywood platform in 1991. When the building was used by