From Pennells' "Panama Canal Series", this lithograph measures 17 1/2 x 22 inches. Cat: Weurth 233. Pencil signed. From January, 1912 to March of that year, Pennell spent sketching in the depths of the final construction of this massive undertaking. At times he wondered if its' vastness was possible to capture on paper. He was allowed to venture wherever he wanted and the men working around him were just as much interested in his work as they were in their own. He treasured his time spent there.