Blue plaque № 28405

Pittsburgh, PA, United States

Pittsburgh Plate Glass Company. First commercially successful U.S. plate glass maker, founded 1883 by John Ford, John Pitcairn and others. First plant was at Creighton; office was half a block east of here on Fourth Avenue. The company became PPG Industries in 1968.

Listen to the audio guide for Blue plaque № 28405 Free on WIP — starts by itself when you arrive, even with the screen off