After the Centennial Exhibition closed in the fall of 1876, the buildings were purchased by the Permanent Exhibition Company, which also purchased the Roosevelt organ. In 1881, the organ, said to cost its builders $28,000, was sold to the Charitable Mechanics Association for $10,000 and placed in their large new hall on Huntington Avenue in Boston. Roosevelt completely rebuilt the organ for its new location.

"The electric Echo Organ, is placed in the English Tower, and is connected by about 200 feet of wire Cable to the keys of the Great Organ; its bellows being blown by an electric engine. The Electric Suspended Organ, is suspended from the roof about 20 feet in front of the Organ Gallery. This is connected also by a Cable of insulated wires to the keys of the Great Organ; and its bellows is blown by an electric engine." (Hilborne L. Roosevelt)