Williams Coal Company. In matter of Williams Coal Company and United Mine Workers of America, District No. 23; in matter of Sixth Vein Coal Corporation and [same]; in matter of Reinecke Coal Mining Company and [same]; in matter of Grapevine Coal Company and [same]; in matter of Operators Association and [same], cases nos. C-318 to C-322, decided Feb. 23, 1939; [decision and order].