No. 78-1231. Argued January 9, 1979. Decided April 20, 1979. Theodore L. Chandler, Jr., Richmond, Va. (Samuel W. Hixon, III, Richmond, Va., on brief), for petitioner. Michael Murchison, N.L.R.B., Washington, D.C. (John S. Irving, Gen. Counsel, John E. Higgins, Jr., Deputy General Counsel, Robert E. Allen, Acting Associate Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel, Janet C. McCaa, N.L.R.B., Washington, D.C., on brief), for respondent. Luther C. West, Baltimore, Md. (Bernard W. Rubenstein