All Untagged Photos
Small 20100517 cp 0183 Not Tagged
Brilliant Pumping Station
Small 20081209 cp 0051 Not Tagged
Allegheny River Bank Looking East
Small 20090224 cp 0012 Not Tagged
Engineers' Society of Western Pennsylvania
Small 20090914 cp 0393 Not Tagged
Aspinwall Pumping Station Chimney
Small 20090331 cp 0068 Not Tagged
Arch Bridge Construction
Small 20090227 cp 0007 Not Tagged
Filtration Plant Progress
Small 20090224 cp 0066 Not Tagged
Filter No. 24
Small 20090331 cp 0079 Not Tagged
General Laboratory