This image was acquired from
wikimedia. 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:
Compressor building and dump NYPL bGF F. en Compressor building and dump nypl org Scan by NYPL Compressor building and dump Hoosac tunnel route series Tunnels The Miriam and Ira Wallach Division of Art Prints and Photographs Photography Collection ecafcfddabc GFF Robert Dennis collection of stereoscopic views defdadeeaa NYPGF