Cumberland, Franklin, Adams counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Plate H. South Central Pennsylvania.

1871

Hopkins, G.M.

Huntingdon, Juniata, Mifflin, Perry counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Somerset, Bedford, Fulton counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Canal de la Chesapeake a l'Ohio.

1834

Poussin, Guillaume Tell, 1794-1876

1:500k

State of Maryland

1840

none

1:521k

Anthracite Coal Fields Of Pennsylvania

1878

Cochran, A.B.

1:158k

Baltimore

1989

US GS & NOAA

1:250k

The new war map of Maryland, part of Virginia & Pennsylvania

1863

Russell, B. B. (Benjamin B.)

1:520k

National Road from Washington to Lake Ontario

1828

Stansbury, A.J.

1:317k