"W.O. Batchelder, president of the Electric Association of Chicago, (right) by passing his hand over a grid-glow tube caused the lights of the Electrical Group of Chicago's 1933 World's Fair -- A Century of Progress Exposition -- to burst forth in brilliant radiance. This operation was one of the features of the official dedication of this group on October 12. From left to right: Dr. Louis L. Mann, who gave the invocation, President Rufus C. Dawes of A Century of Progress Exposition, B.E. Sunny, a trustee of the Exposition and former chairman of the board of the Illinois Bell Telephone Company who delivered the address of dedication, and Mr. Batchelder who presided at the ceremony."
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