No. 74-1645. Submitted February 13, 1975. Decided March 18, 1975. Charles A. Shaw, Atty., National Labor Relations Board, Washington, D.C., for petitioner. Charles Kelso, Atlanta, Ga., for respondents. Appeal from the National Labor Relations Board. Before HEANEY, Circuit Judge, and WANGELIN and NANGLE, District Judges. H. KENNETH WANGELIN and JOHN F. NANGLE, District Judges, Eastern District of Missouri, sitting by designation. HEANEY, Circuit Judge. The National Labor Relations Board seeks enforcement