Pennsylvania Railroad, Horse Shoe Curve. Stereoscope card.

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

pennsylvania pennsylvania railroad railroad tracks horseshoe curve national historic landmark pa horse shoe curve high resolution purviance w t william t photographer stereoscopic views horse shoe curve united states central railroad robert dennis collection of stereoscopic views 19th century history of pennsylvania railroads nypl

1870 - 1879

New York Public Library

http://digitalcollections.nypl.org/

Creative Commons CC0 1.0 Universal Public Domain Dedication ("CCO 1.0 Dedication")