Uptown Mount Lebanon is one of the best Art Deco neighborhoods in the Pittsburgh area, and this building—otherwise a rather severe late-classical style—stands out for its bright Art Deco marquee.
Addendum: The architect was Charles R. Geisler, according to a listing in a local architectural magazine. Source: The Charette, Vol. 7, No. 2 (February 1927): “185. Chas. R. Geisler, 205 Ferguson Building, Pittsburgh, Pa. Contract for Stephenson [sic] & Williams Apartment and Office Building was let to Fred K. Becker, Dormont. Approximately $80,000.00. Plans out on reserved plumbing, heating, tile and composition work.”