The mailing envelope reads, "Worth Knowing!" and includes two promotions about Arm and Hammer Baking Soda. The first is titled, "Baking Soda...A Friend In Need" measuring 14 x 8 cm. The second, "Cleansings Helps-Washing Soda" measuring 15.3 x 8 cm.
Donor: Sliker, Shirley Brocker
Brand Name: Arm and Hammer Baking Soda
Publisher: Church and Dwight Co., Inc. (New York, N.Y.)
12.7 x 16.5 cm
Copyright: This item is under copyright.
Citation: Worth Knowing. The Alan and Shirley Brocker Sliker Collection, MSS 314, Special Collections, Michigan State University Libraries. Available at http://www.lib.msu.edu/exhibits/sliker/detail.jsp?id=590