Wesley Mouche... the only Fox design that appears to be circa 17 stories tall was the preliminary model of the never built Philadelphia Fox, as shown here.
It was a grand design that the Great Depression killed. Although the theatre was supposed to be 6,000 seats [Detroit Fox has 5,174], I saw a model of the interior space dimensions, and they were identical to those of the Detroit Fox... so it would not have had a larger theatre.
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