No. 20045. December 15, 1970. Rehearing Denied and Rehearing En Banc Denied December 21, 1970. Victor M. Harding, Milwaukee, Wis. (Thomas L. Butch, Escanaba, Mich., Anthony W. Asmuth, III, Milwaukee, Wis., on the brief), for appellant. David Loeffler, Milwaukee, Wis. (Goldberg, Previant Uelmen, Milwaukee, Wis., on the brief), for appellee Sheet Metal Workers Union, Local No. 94 AFL-CIO. Donald W. Fisher, Toledo, Ohio, for appellee Sheet Metal Workers International Association, AFL-CIO; Mulholland