- Otley, J. W
- Digital Commonwealth
- Boston Public Library
- Published by R.L. Barnes
Relief shown by hachures. Prime meridian: Washington. Includes population statement and county statistics. Otley's name does not appear on the map. Entered according to an Act of Congress in the year 1852 by R.L. Barnes in the Clerk Office of the District Court of Pa. By ; engraved on stone by Friend & Aub.
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