La Journee du Poilu by Lucien Jonas c1915
Jonas shows us the Poilu or (hairy guys) which was the pet name for french infantrymen during WWI. The coin in the upper right hand corner shows the date the war started but does not show the end so I guess the poster was printed at the beginning of the war and its to support our soldiers.As paper was scarce and so was ink the fact that the poster was printed in color gives rise to its importance at the time.