World War I Servicemen Lantern Slides. Material: glass, paper. Size: 3 1/4" W. x 4" L. x 1/8" D. Description: negative slide between two glass plates picturing soldiers and captioned: "Y.M.C.A. Headquarters at Camp McArthur, Waco, Texas, Y.M.C.A." and Logo; black taped edges, white label on one side: "Northwestern Advertising, Co. Makers, Ask any of our National Accounts about N.W. Lantern Slide Service, Watkins Building, Milwaukee, Wis.";- handwritten white label: "Our Boys in Camp."
