No. 91-1494. Argued November 5, 1992. Decided March 9, 1993. James V. Meath, Richmond, VA, was on the brief, for petitioner. Nancy J. Gottfried, with whom Peter Winkler, Supervisory Atty., and Aileen A. Armstrong, Deputy Associate General Counsel, Washington, DC, were on the brief for respondent. Petition for Review of an Order of the National Labor Relations Board. Before SILBERMAN, WILLIAMS, and D.H. GINSBURG, Circuit Judges. Opinion for the Court filed by Circuit Judge D.H. GINSBURG. D.H. GINSBURG