Details: This poster is a war propaganda poster showing a soldier leaning out of a ship's porthole. At the top it says 'Till we meet again' and at the bottom it says 'Buy War Bonds'.
War bonds are debt securities issued by a government for the purpose of financing military operations during times of war. War bonds generate capital for the government and make civilians feel involved in their national militaries. This system is also useful as a means of controlling inflation in such an overstimulated economy by removing money from circulation until hopefully after the war is concluded.
This poster is usually printed with a thin white edge border.