No. 16907. July 17, 1969. Rehearing Denied August 14, 1969. Marcel Mallet-Prevost, Asst. General Counsel, Harold B. Shore, Atty., N.L.R.B., Washington, D.C., Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Lawrence M. Joseph, Atty., N.L.R.B., for petitioner. John H. Bowers, Robert C. Kelly, Madison, Wis., John C. Carlson, Madison, Wis., for Local 1401, Retail Clerks International Association, Intervenor. Joseph A. Melli, James K. Pease, Jr., Madison, Wis., for respondent