This is an original pencil signed lithograph by American artist Joseph Pennell. He traveled down to Panama in 1912 to record the building of the Canal. He created a series of images from that trip. This image is titled Cranes at Miraflores Lock, Panama, Printed in an edition of only 100. This image measures 22 1/4X16 3/4 inches on a Fabiano watermarked, laid type paper. Sheet size is 25 1/2X 20 1/2 inches.