No. 76-1414. Argued November 8, 1976. Decided February 10, 1977. Alan Banov, Atty., N.L.R.B., Washington, D.C. (John S. Irving, Jr., Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Carl. L. Taylor, Associate Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel, Paul J. Spielberg, Atty., N.L.R.B., Washington, D.C., on brief), for petitioner. John S. McLellan, Jr., Washington, D.C., for respondent. Appeal from the National Labor Relations Board. Before HAYNSWORTH, Chief Judge, RUSSELL