Included in this lot is a World War I, Uncle Sam, linen back poster. This litho poster features the iconic World War I image of Uncle Sam by James Montgomery Flagg. This image has become synonymous with the United States and is one of the most popular of all war posters. Using his own image to avoid having to hire a model (adding only some age and a white goatee), Flagg fashioned one of the most successful recruitment posters ever printed, so popular that it was later re-purposed for World War II. © Leslie-Judge Co. This poster features a linen back and is in great condition with an unknown date. It measures 26 1/4" by 39".