Pittsburgh Plate Glass Company

Allegheny County · dedicated 1983 · Plaza of PPG Place, between 4th Ave. & Market Sq., Pittsburgh

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.

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David Rumsey Map Collection, Stanford Libraries

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Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

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