No. 12573. Argued September 16, 1958. Decided October 28, 1958. Horace E. Smith, York, Pa. (Thomas H. Reed, York, Pa., Charles W. Wolf, Gettysburg, Pa., on the brief), for petitioner. Thomas Ryan, Washington, D.C., and Falls Church, Va. (Jerome D. Fenton, General Counsel, Thomas J. McDermott, Associate General Counsel, Marcel Mallet-Prevost, Asst. General Counsel, Frederick U. Reel, Attorney, National Labor Relations Board, Washington, D.C., on the brief), for respondent. Before GOODRICH, STALEY