This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
postcards postcard youngstown youngstown ohio youngstownohio ohio unused divided back era dividedbackera date unknown dateunknown unknown date unknowndate erie p.a. series eriepaseries republic iron and steel works republicironandsteelworks steel factory steelfactory steel steel factories steelfactories harry h. hamm harryhhamm iron