No. 621, Docket 86-4107. Argued January 7, 1987. Decided February 10, 1987. Ira Sturm, New York City (Manning, Raab, Dealy Sturm, of counsel), for respondent. Frederick Havard, Atty., N.L.R.B., Washington, D.C. (Rosemary M. Collyer, Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Robert E. Allen, Associate Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel, Howard E. Perlstein, Supervisory Atty., N.L.R.B., Washington, D.C., of counsel), for petitioner. Petition for review from the