No. 412, Docket 31827. Argued April 25, 1968. Decided May 6, 1968. Frank H. Itkin, Attorney, N.L.R.B. (Arnold Ordman, General Counsel, Dominick L. Manoli, Associate General Counsel, Marcel Mallet-Prevost, Asst. General Counsel, and Ian D. Lanoff, Attorney, N.L.R.B., on the brief), for petitioner. Sidney A. Coven, Boston, Mass. (Lepie Coven, Boston, Mass., on the brief), for respondent. Before HAYS, ANDERSON and FEINBERG, Circuit Judges. PER CURIAM: The National Labor Relations Board seeks enforcement