[Aeronautical strip maps of the United States].
Zusammenfassung
Public domain scan of a railway map, transportation, industrial development, free to use, no copyright restrictions - Picryl description.
Datum
01/01/1924
Mitwirkende
United States. Army. Air Corps.
United States. Army. Corps of Engineers.
Geological Survey (U.S.). Topographic Branch.
Quelle
Library of Congress
Copyright-info
Public Domain