No. 500, Docket 78-4115. Argued January 15, 1979. Decided May 21, 1979. Hugh P. Husband, Jr., New York City, for respondent. Paul J. Spielberg, Washington, D.C., Deputy Associate Gen. Counsel, Washington, D.C. (Sandra L. Elligers, John S. Irving, Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Robert E. Allen, Acting Associate Gen. Counsel, and Elliott Moore, Deputy Associate General Counsel, N.L.R.B., Washington, D.C., of counsel), for petitioner. Petition from the National Labor Relations