No. 14940. May 9, 1963. Edward J. Simerka and Eugene B. Schwartz, Cleveland, Ohio, (W.K. Stanley, Stanley, Smoyer Schwartz, Cleveland, Ohio, on the brief), for petitioner. Thomas E. Shroyer, Washington, D.C., on the brief for American Retail Federation as Amicus Curiae. Stephen B. Goldberg, Washington, D.C., (Stuart Rothman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, James C. Paras, Stephen B. Goldberg, Attys., N.L.R.B., Washington, D.C.,