Armour & Company. In matter of Armour & Company and Amalgamated Meat Cutters and Butcher Workmen of North America, Local No. 641; in matter of [same] and International Union of Operating Engineers, Local No. 1; in matter of [same] and United Packing House Workers Local Industrial Union No. 300; in matter of [same] and [same], cases nos. C-647 [to] C-649 and R-710; supplemental decision and certification of representatives, Mar. 14, 1939.