No. 19164. Argued June 11, 1965. Decided July 28, 1965. Mr. Bernard M. Mamet, Chicago, Ill., with whom Mr. James F. Carroll, Washington, D.C., was on the brief, for petitioners. Mr. Melvin J. Welles, Atty., N.L.R.B., with whom Messrs. Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Mrs. Linda R. Sher, Atty., N.L.R.B., were on the brief, for respondent. Before DANAHER, BURGER and McGOWAN, Circuit Judges. McGOWAN, Circuit Judge: