Father Pitt is fairly certain that the ornamental stonecarving on the Maginn Building was done by Achille Giammartini, Pittsburgh’s master of Romanesque whimsies. The style is Giammartini’s, and the building was designed by Charles Bickel, who is known to have brought in Giammartini for the German National Bank (now the Granite Building) around the corner, as we see in this advertisement:
But, you say, speculation is not enough for you. You want the artist’s signature. Well, to old Pa Pitt, this looks like a signature:
In fact, Father Pitt has formed the hypothesis that Giammartini littered the city with self-caricatures in Romanesque grotesque. Several other buildings bear carved faces similar to these two in the corners of the arch on the seventh floor of the Maginn Building.
The rest of the ornaments are also in Giammartini’s trademark style: lush Romanesque foliage with slightly cartoonish faces peering out from the leaves.