No. 15384. Argued April 11, 1960. Decided June 30, 1960. Mr. Benjamin C. Sigal, Washington, D.C., with whom Mr. David S. Davidson, Washington, D.C., was on the brief, for petitioner. Miss Fannie M. Boyls, Atty., National Labor Relations Board, with whom Messrs. Dominick L. Manoli, Associate General Counsel, National Labor Relations Board, and Marcel Mallet-Prevost, Asst. Gen. Counsel, National Labor Relations Board, were on the brief, for respondent. Before PRETTYMAN, Chief Judge, and BAZELON and