You searched for: Issue Dates May 1950 Remove constraint Issue Dates: May 1950 Product Keywords butter Remove constraint Product Keywords: butter Defendants Merchants Creamery Co. Remove constraint Defendants: Merchants Creamery Co. Titles 15573. Adulteration of butter. U. S. v. 13 Cases, etc. Remove constraint Titles: 15573. Adulteration of butter. U. S. v. 13 Cases, etc.