The head of No. 7 plane.
Summary
Picryl description: Public domain image from Robert Dennis collection of stereoscopic prints, free to use, no copyright restrictions.
Tags
pennsylvania
coal mining
railroad tracks
pennsylvania coal company
hensel l loudolph 1849 1927 photographer
stereoscopic views
head
plane
united states
northeast
robert dennis collection of stereoscopic views
history of pennsylvania
ultra high resolution
high resolution
back of stereoscopic card
Date
1850 - 1930
Source
New York Public Library
Link
Copyright info
Creative Commons CC0 1.0 Universal Public Domain Dedication ("CCO 1.0 Dedication")