No. 77-1939. Argued February 24, 1978. Decided March 30, 1978. Resubmitted for Reconsideration June 3, 1978. Rehearing Denied August 11, 1978. D. Barry Gibbons, Gibbons, Buckley and Smith, Media, Pa., for petitioner. Elliott Moore, John S. Irving, Marion L. Griffin, Norman Moscowitz, N.L.R.B., Washington, D.C., for respondent. Before ADAMS, HIGGINBOTHAM, Circuit Judges, and BECHTLE, District Judge. United States District Judge for the Eastern District of Pennsylvania, sitting by designation. OPINION