No. 14428. Argued November 9, 1970. Decided December 14, 1970. Frank A. Constangy, Atlanta, Ga. (Constangy Prowell, Atlanta, Ga., on brief), for petitioner. Allison W. Brown, Jr., Atty., N.L.R.B. (Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Julius Rosenbaum, Atty., N.L.R.B., on brief), for respondent. Hugh J. Beins, Washington, D.C. (Robert M. Baptiste, on brief), for intervenor. Before BOREMAN and BUTZNER, Circuit Judges