Calumet Baking Powder Butter And Eggs Revolving Price Display Advertising – Kitchen Ephemera

Vintage Original Calumet Baking Powder Butter and Eggs Sign; heavy paper blue advertising sign with four revolving number discs on the back, so the price of Butter and Eggs can be changed.  size: 14.25″ x 11 inches; circa: 1935; http://www.aziomedia.com