You searched for: Issue Dates May 1950 Remove constraint Issue Dates: May 1950 Product Keywords flour Remove constraint Product Keywords: flour Collections Foods, 1940-1966 Remove constraint Collections: Foods, 1940-1966 Titles 15253. Adulteration of flour. U. S. v. 18 Bags. Remove constraint Titles: 15253. Adulteration of flour. U. S. v. 18 Bags.