 Although the building was commissioned for the Chicago Board of Trade, its first tenant was the Quaker Oats Company, which moved in on May 1, 1930.Sculptural work by Alvin Meyer, the one-time head of Holabird & Root's sculpture department, is prominent on the building's façade, and represents the trading activities within.On each side of the diameter clock facing LaSalle Street are hooded figures, a Babylonian holding grain and a Native American holding corn.