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topic
Geology
4
Coal
3
name
Geological Survey of Pennsylvania
7
Hart, Lane S
7
Lesley, J. P. (J. Peter), 1819-1903
7
White, I. C. (Israel Charles), 1848-1927
4
Julius Bien & Co
2
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collection
Maps of North America
7
place
x
Pennsylvania
Allegheny County
2
Allegheny County (Pa.)
2
Beaver County
1
Beaver County (Pa.)
1
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genre
x
Maps
Geological maps
4
publisher
x
Second Geological Survey of Pennsylvania
division
Map Division
7
type
cartographic
7
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7 results found
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: Second Geological Survey of Pennsylvania
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Geological map of Berks Count…
Map of Beaver County showing …
Map of southern Butler County…
Geological map of Fayette Cou…
Geological map of Allegheny C…
Geological map of Fulton Coun…
Map of North Allegheny, showi…