Skinner Organ Co.
Opus 414, 1923

From Wikipedia: The Chicago Temple Building is a 173-meter (568 foot) tall skyscraper church located at 77 W. Washington Street in Chicago, Illinois, United States. It is home to the congregation of the First United Methodist Church of Chicago. It was completed in 1924 and has 23 floors dedicated to religious and office use. It is by one measure the tallest church building in the world based on the distance from the church's street level entrance to the top of the church's spire or steeple. Although by stipulating that a church building's usage be entirely or almost entirely devoted to religious purposes, then, by that standard, Ulm Minster in Ulm, Germany at 161.5 metres (530 feet) in height is the tallest church in the world. It was the tallest building in Chicago from 1924 until 1930, when it was surpassed by the Chicago Board of Trade Building. This claim included the height of the steeple to maintain the title over the 35 East Wacker Building which opened in 1927. The building houses three sanctuaries:

Sanctuary 1 is four stories tall on the ground floor with seating available for 1,000 people.
Sanctuary 2 is also known as the "Dixon Chapel" and is on the second floor.
Sanctuary 3 also known as the "Sky Chapel" is the smallest sanctuary and is situated at the base of the steeple with seating for 30 people.

Floors 4 through 21 of the building are rented office space with one residential area which is used by the Methodist church's senior pastor as a parsonage, occupying the three floors of the spire, just below the Sky Chapel. The sixth floor of the building once held the office of Clarence Darrow, the famous trial attorney.

Identified through information adapted from E. M. Skinner/Aeolian-Skinner Opus List, by Sand Lawn and Allen Kinzey (Organ Historical Society, 1997), and included here through the kind permission of Sand Lawn:
Rebuilt by Wicks ca. 1982 with new console; enlarged by Wicks in 1991.