You searched for: Product Keywords butter Remove constraint Product Keywords: butter Collections Foods, 1940-1966 Remove constraint Collections: Foods, 1940-1966 Defendants Armour & Co. Remove constraint Defendants: Armour & Co. Titles 17165. Adulteration of butter. U. S. v. 30 Cases. Remove constraint Titles: 17165. Adulteration of butter. U. S. v. 30 Cases.