In the Cut at Las Cascadas, Panama Canal

This is an original pencil signed lithograph by American artist Joseph Pennell.  It is from his Panama Canal series, the title of this image is: In the Cut at Las Cascadas, Panama Canal.  It was created and printed in 1912.  The image measures 17 1/2X 22 1/2 inches on a sheet of Fabiano laid type paper which measures 20 1/2X25 1/2 inches.