The opinion
EDWARDS, Circuit Judge
(dissenting).
The National Labor Relations Board has wide discretion under the National Labor Relations Act in making appropriate bargaining unit determinations. NLRB v. Checker Cab Co., 367 F.2d 692 (6th Cir.), cert. denied, 385 U.S. 1008 , 87 S.Ct. 715 , 17 L.Ed.2d 546 (1967); Packard Motor Car Co. v. NLRB, 330 U.S. 485, 491 , 67 S.Ct. 789 , 91 L.Ed. 1040 (1947). I think that there is substantial evidence on the whole record to support the Board’s determination.