No. 25319. February 12, 1969. Rehearing Denied July 17, 1969. Marcel Mallet-Prevost, Asst. Gen. Counsel, Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, John I. Taylor, Michael N. Sohn, Linda Sher, Attys., N.L.R.B., Washington, D.C., for petitioner. Harry L. Griffin, Jr., Overton A. Currie, William T. Wood, Smith, Currie Hancock, Atlanta, Ga., for Clement Brothers Co., Inc., Mark G. Kaplan, Boston, Mass., Angoff, Goldman, Manning Pyle, Boston, Mass., for International Union