Author: Smithsonian Institution - Howe, Harrison Estell - United States Chemical Warfare Service - National Research Council (U.S.) Source:Library of Congress Usage Rights: Publication Date: 1921 View Primary Source
Author: Pellissier, Raoul - International Photo-Engravers' Union of North America. Union No. 1, New York Source:Library of Congress Usage Rights: Publication Date: 1910 View Primary Source