Production. Aircraft engines. A skilled mechanic and determined war worker, Zed W. Robinson, proves that skin pigment bears no relation to efficiency of work. He's one of many Negroes employed in a large Midwest aircraft plant in skilled and semi-skilled capacity. Tightening bolts of a cylinder barrel during the final build-up of an airplane engine is one of the jobs which, until fairly recently, was closed to members of his race. But this war demands that no American because of race, creed or color shall be barred from work. Melrose Park, Buick plant