A rare photo dated March 18 1920, likely taken by Derry photographer and historian, as well as PHV and later Westinghouse employee Hilary Noel. Notice the large light up sign on the roof edge. I've seen photos of the Westinghouse sign, but up until I found this photo I was unsure if a similar Pittsburg sign ever existed, all the earlier photos were absent of a sign. So this was really neat to see.