Stereoview of the Western Entrance of the Hoosac Tunnel Taken From the Interior of the Tunnel During its Construction Near North Adams, Massachusetts (1860's/1870's)

Stereoview of the western entrance of the Hoosac Tunnel taken from the interior of the tunnel during its construction near North Adams, Massachusetts, c. 1860-1875. By Hurd and Smith.

Source: New York Public Library.