Cotton Exchange Building, ca. 1890.

The Cotton Exchange is the oldest commodities exchange in the city, dating to 1870 when it was founded by 100 cotton brokers and merchants. Chartered in 1871 by the State of New York, the Cotton Exchange was first located at 1 Hanover Square (which later became India House). In 1885 they moved into this George B. Post-designed building at the corner of Beaver and William Streets (60 Beaver or 3 Hanover Square). This 19th century structure with a broad rounded corner and cone-shaped roof was replaced in 1923 by new Cotton Exchange Building designed by Donn Barber.