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Carte cataloguée
Curwensville
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Institution:
United States Geological Survey
Titre complet:
Curwensville
Année de l'image:
1939
Date de publication:
1956
Échelle de la carte:
1:62 500
Curwensville
1942
1:63k
Curwensville
1939
1:63k
Curwensville
1939
1:63k
Houtzdale
1905
1:63k
Houtzdale
1905
1:63k
Houtzdale
1905
1:63k
Houtzdale
1905
1:63k
Houtzdale
1905
1:63k
Curwensville
1903
1:63k
Curwensville
1903
1:63k
Curwensville
1903
1:63k
Curwensville
1903
1:63k
Houtzdale
1903
1:63k
L'histoire