No known copyright restrictions.
No known restrictions on use.
Publisher:
Meadville, Pa. ; New York, N.Y. ; Portland, Oregon ; London, Eng. ; Sydney, Aus. :
Keystone View Company
Notes:
Title from item.
Number on item: 7049.
Image caption: Abandoned Mine Showing how Prop Timber is Used to Support Roofs of Tunnels, Scranton, Pa., U.S.A.