This unusual structure is part of a larger complex of buildings, of which this is the main place of worship. The Church of Tomorrow is the home of the First Christian Church congregation. It, and the associated buildings, were constructed in the late 1950s.
The description states:
‘CHURCH OF TOMORROW’
Oklahoma City, Oklahoma
The First Christian Church, located at 3700 North Walker, known as the “Church of Tomorrow”, is one of the most beautiful and unusual sights in Oklahoma City.
This card likely dates from the 1960s.