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Topical Subjects
- Construction workers--Pennsylvania--Beaver Falls.1
- Ditches--Pennsylvania--Beaver Falls--Design and construction.1
- Formations (Geology)--West Virginia--Williamson.1
- Freight cars.1
- Portraits--P.1
- Road construction workers--West Virginia--Wadestown.1
- Road machinery--West Virginia--Wadestown.1
- Road machinery.1
- Road rollers--West Virginia--Morgantown.1
- Road rollers--West Virginia--Williamson.1
- Roads--West Virginia--Wadestown--Design and construction.1
- Steam-engines--Pennsylvania--Beaver Falls.1
- Storage facilities--Pennsylvania--Beaver Falls.1
- Storage facilities--West Virginia--Williamson.1
- Streets--Pennsylvania--Beaver Falls--Design and construction.1
- Surveyors--Pennsylvania--Beaver Falls.1