Second Geological Survey of Pennsylvania, anthracite district, Panther Creek Basin, Carbon and Schuylkill counties, Volume I of Southern Coal Field, cross section, Sheet no. I
Summary
Public domain scan of a plan, map, architecture drawing, or diagram, free to use, no copyright restrictions - Picryl description.
Tags
Date
1882 - 1882
Source
New York Public Library
Copyright info
Creative Commons CC0 1.0 Universal Public Domain Dedication ("CCO 1.0 Dedication")