Ambridge

1960

1:24k

Ambridge

1960

1:24k

Ambridge

1960

1:24k

Ambridge

1960

1:24k

Ambridge

1960

1:24k

Ambridge

1953

1:24k

Ambridge

1960

1:24k

Economy Township, Beaver County PA.

1876

Caldwell, Joseph A.

Upper Ohio River and Valley part II, 12 to 31 miles below Pittsburgh ... (with) Economy, Baden.

1877

Hayes, Eli L.

1:32k

Sewickley

1906

1:63k