Duquesne Way
Duquesne Horse & Mule Co
The Carnegie Building on Cherry Street
Dante Alley
Penn Avenue Paving
Evans Way
Street Car
Bus to Aliquippa
Mellon Square Park
John M. Roberts Jewelers
Forbes Street Car
Barges on the Monongahela River
Olmstead's Café
Penn Avenue
Hump Removal
Working on Diamond Street
The Pittsburg Watch & Metal Company
WIIC-TV
Manchester Bridge
Sixth Avenue Hump Cut
Flood of 1913
Excavation and Foundation of William Penn Hotel
Flood of 1913
Union Arcade Construction- Basement Level Steel
Hump District
Chatham Street Hump Cut
G.C. Murphy Company
G.C. Murphy Company