No. 20451. Argued February 10, 1967. Decided March 16, 1967. Mr. Bernard M. Mamet, Chicago, Ill., with whom Mr. Francis X. Ward, Washington, D.C., was on the brief, for petitioner. Mrs. Nancy M. Sherman, Atty., N.L.R.B., with whom Messrs. Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, and Marcel Mallet-Prevost, Asst. Gen. Counsel, N.L.R.B., were on the brief, for respondent. Before FAHY, BURGER and ROBINSON, Circuit Judges. PER CURIAM: In unfair labor practice proceedings