Details: This poster is of a war propaganda ad showing a war ships at sea. In the foreground is a boat with 'PT 34' painted on it, shining a light and speeding forward. In the background, a ship is sinking as explosive flames rise from it. Other ships and flames can be seen in the distance on the left. At the bottom it says 'Give us lumber for more PT's.
PT boats were a variety of motor torpedo boat (hull classification symbol 'PT', for 'Patrol Torpedo'), a small, fast vessel used by the United States Navy in World War II to attack larger surface ships. The PT boat squadrons were nicknamed 'the mosquito fleet'. The Japanese called them 'Devil Boats'.
This poster is usually printed with a thin white edge border.