No. 8450. Argued January 8, 1962. Decided March 13, 1962. Henry St. J. FitzGerald, Arlington, Va. (Tolbert, Lewis FitzGerald, Arlington, Va., on the brief), for petitioner. Hans J. Lehmann, Atty., N.L.R.B., Washington, D.C. (Stuart Rothman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Samuel M. Singer, Atty., N.L.R.B., Washington, D.C., on the brief), for respondent. Before SOBELOFF, Chief Judge, and BRYAN and J. SPENCER BELL, Circuit Judges