Nos. 14052, 14102. Argued May 21, 1963. Decided July 30, 1963. M.H. Goldstein, Philadelphia, Pa. (Goldstein Barkan, Michael Brodie, Philadelphia, Pa., on the brief), for petitioner, Industrial Union of Marine and Shipbuilding Workers of America, AFL-CIO. John H. Morse, New York City (Frank Cummings, New York City, Cravath, Swaine Moore, New York City, on the brief), for Bethlehem Steel Co. (Shipbuilding Division). Nancy M. Sherman, Washington, D.C. (Stuart Rothman, Gen. Counsel, Dominick L. Manoli