You searched for: Issue Dates December 1952 Remove constraint Issue Dates: December 1952 Product Keywords butter Remove constraint Product Keywords: butter Collections Foods, 1940-1966 Remove constraint Collections: Foods, 1940-1966 Defendants C. A. Swanson & Sons Remove constraint Defendants: C. A. Swanson & Sons Titles 18706. Adulteration of butter. U. S. v. 23 Cases. Remove constraint Titles: 18706. Adulteration of butter. U. S. v. 23 Cases.