A classic 1925 tower - but this picture is a bit off. The original had lots of frosting on top. The back of the card says it's Pittsburg's "newest," which suggests modernization.
Emporis says it was converted to offices, and called the Lawyers Building, except . . . the address shows a building that looks nothing like this, and has a sign that identifies it as the Pittsburgher.
The building next to it looks like a two-wing hotel, and is called the Law and Finance Building.
I give up.