No. 18888. Argued October 29, 1970. Decided November 10, 1970. Paul J. Spielberg, Atty., N.L.R.B., Washington, D.C. (Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Stephen Solomon, Atty., N.L.R.B., on the brief), for petitioner. Paul M. Hanlon, O'Mara, Schumann, David Hession, Jersey City, N.J. (Schumann, Hession, Kennelly Dorment, Jersey City, N.J., on the brief), for respondent. Before FORMAN, SEITZ and ALDISERT, Circuit Judges