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Topical Subjects
- Cities--Morgantown--Pietro Collection--Business and Industry--Beaver Falls, PA.72
- Construction workers--Pennsylvania--Beaver Falls.1
- Dwellings--Pennsylvania--Beaver Falls.2
- Factories--Pennsylvania--Beaver Falls.4
- Horse-drawn vehicles--Pennsylvania--Beaver Falls.2
- Manholes--Pennsylvania--Beaver Falls--Design and construction.2
- Pipelines--Pennsylvania--Beaver Falls--Design and construction.59
- Railroad tracks--Pennsylvania--Beaver Falls.2
- Road construction workers--Pennsylvania--Beaver Falls.47
- Roads, Brick--Pennsylvania--Beaver Falls--Design and construction.1
- Roads--Pennsylvania--Beaver Falls--Design and construction.8
- Sidewalks--Pennsylvania--Beaver Falls--Design and construction.2
- Storage facilities--Pennsylvania--Beaver Falls.1
- Streets--Pennsylvania--Beaver Falls--Design and construction.1