The decree is affirmed upon the authority of Printing Specialties and Paper Convert. U. v. Le Baron, 9 Cir., 171 F.2d 331; Building & Construction Trades Council v. Le Baron, 9 Cir., 181 F.2d 449; Hughes v. Superior Court, 339 U.S. 460, 70 S.Ct. 718; International Broth. of Teamsters Union etc. v. Hanke, 339 U.S. 470, 70 S.Ct. 773; and Building Service Emp. Intern. Union Local 262 v. Gazzam, 339 U.S. 532, 70 S.Ct. 784.