No. 16599. May 15, 1968. Rehearing Denied June 26, 1968. Marcel Mallet-Prevost, Asst. Gen. Counsel, Allison W. Brown, Jr., Burton L. Raimi, Attorneys, N.L.R.B., Washington, D.C., Arnold Ordman, General Counsel, Dominick L. Manoli, Associate General Counsel, for petitioner. George L. Plumb, Chicago, Ill., Peer Pedersen, Chicago, Ill., for respondent; Pedersen Houpt, Chicago, Ill., of counsel. Before KNOCH, Senior Circuit Judge, and CASTLE and KILEY, Circuit Judges. CASTLE, Circuit Judge. This case