See section 1 of the Act, 29 U.S.C. § 151. That such action would substantially affect interstate commerce is hardly open to argument. See Pearl Beer Distributing Co., etc. v. NLRB, 5 Cir., 1964, 331 F.2d 301, cert. denied, 379 U.S. 830, 85 S.Ct. 59, 13 L.Ed.2d 38; NLRB v. Sightseeing Guides Lecturers Union, etc., 2 Cir., 1962, 310 F.2d 40. The Board had jurisdiction. The order will be enforced.