The Walls of Miraflores Lock, 1912

This is an original pencil signed lithograph by American artist Joseph Pennell.  This image is one of his Panama Canal Series that he created in 1912.  The image is titled: The Walls of Miraflores Lock, 1912.  The image measures 18 1/2X24 3/4 inches, on a Fabiano watermarked laid type paper which measures 20 1/2X25 1/2 inches.