This is classicism walking the knife edge between Art Deco on the one side and modernism on the other. The architect was George H. Schwan, a Pittsburgher whose only other major commission in town that old Pa Pitt knows about is the Twentieth Century Club in Oakland. [Update: The Twentieth Century Club is usually attributed to Benno Janssen. Schwan may also have designed the Natatorium Building in Oakland, or the renovations that made it into a movie theater.] Schwan did not starve, however: he was a much-employed designer of attractive smaller houses, and his most famous commission was designing practically all the original buildings in the model Akron suburb of Goodyear Heights.
Addendum: Father Pitt knows of more works by Schwan than he did when he wrote this article. See the Great Big List of Buildings and Architects for old Pa Pitt’s latest research.