No. 18651. May 29, 1969. Leonard M. Wagman, N.L.R.B., Washington, D.C., for petitioner, Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Assoc. Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Neal J. Conway, Atty., Washington, D.C., on brief. Leonard L. Scheinholtz, Pittsburgh, Pa., for respondent, Jonathan L. Alder, Reed, Smith, Shaw McClay, Pittsburgh, Pa., on brief. Before PHILLIPS, EDWARDS and PECK, Circuit Judges. Judge Edwards took no part in the consideration of decision of this case