No. 14618. Argued March 20, 1964. Decided June 22, 1964. Robert A. Armstrong (Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Allison W. Brown, Jr., Atty., N.L.R.B., Washington, D.C., on the brief), for petitioner. Alan R. Howe, Philadelphia, Pa. (Edward Davis, Philadelphia, Pa., on the brief), for respondent. Before McLAUGHLIN, GANEY and SMITH, Circuit Judges. McLAUGHLIN, Circuit Judge. This litigation is the result of the existing