MapS. S. Downin's plat of Joseph Poffenberger
Plat of Joseph Poffenberger Shows property in Washington County, Md. Title from verso. Pen-and-ink on tracing paper, mounted between sheets of transparent paper. LC Civil War maps (2nd ed.), H122 Conversion chart for perch into feet on verso. Available also through the Library of Congress web site as raster image.
- Contributor: Downin, S. S.
- Date: 1851