chimay2971: Pennsylvania Central Coal Mining coal breaker or colliery 1880
chimay2971: Latrobe PA Interior View G.C. Murphys 5 & 10 Store
chimay2971: Wilmerding PA Birdseye View Postcard 1887
chimay2971: Wilmerding PA Westinghouse Air Brake factory 1905
chimay2971: Heidelberg PA Heidelberg Raceway and I-79
chimay2971: Wilkinsburg PA Wood Street business district looking north 1954