In Kearney Trecker Corp. v. NLRB (CCA), 210 F.2d 852, certiorari denied, 348 U.S. 824 (75 S Ct 38, 99 L ed 649), the court stated that where there is an organizational disagreement in regard to recognition the board may abrogate its "contract bar policy" and when it will do so in order to effect the policy of the Federal act is entirely a matter of board policy and discretion. See, also, NLRB v. Grace Co. (CCA), 184 F.2d 126, 129.