No. 12103. March 4, 1958. Stephen Leonard, Associate General Counsel, Fannie M. Boyls, Jerome D. Fenton, General Counsel, Marcel Mallet-Prevost, Asst. General Counsel, Washington, D.C., Robert J. Wilson, Attorneys, National Labor Relations Board, Washington, D.C., for petitioner. W. Munro Roberts, Jr., St. Louis, Mo., for amicus curiae. William J. Costello, St. Louis, Mo., H. Howard Ostrin, Cooper, Ostrin De Varco, New York City, Herman E. Cooper, Eugene N. Sosnoff, New York City, of counsel, for