Nos. 14958, 15390. November 17, 1966. Sherman Carmell, Sheldon M. Charone, David R. Loewenberg, Carmell Charone, Chicago, Ill., for Plastic Workers Union and Toy Workers, AFL-CIO. John H. Rockwell, Donald A. Mackay, Leibman, Williams, Bennett, Baird Minow, Chicago, Ill., for respondents Sinko Mfg. Tool Co., and Sinko Division of MSL Industries, Inc. Marcel Mallet-Prevost, Asst. Gen. Counsel, Peter Giesey, Atty., Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Elliott Moore