Production. Airplane manufacture, general. A group of North American employees at Inglewood, California, look over a new poster on material conservation. The department which produced the poster is saving tons of vital material. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe