This is an original early 20th-century advertising container for Rough Rider brand baking powder. Produced by The Southern Manufacturing Company of Richmond, Virginia, the cylindrical vessel is constructed with a composite body featuring a full-wrap paper label and metal top and bottom caps. The front of the label features a central blue oval graphic depicting a Rough Rider soldier on a galloping horse waving his hat, imagery associated with Theodore Roosevelt and the Spanish-American War era. The brand name Rough Rider and Baking Powder are prominently displayed in stylized blue block lettering against a bright yellow background. The reverse side includes a printed testimonial from Dr. H. C. White of the School of Chemistry, University of Georgia, attesting to the product's purity and leavening power. Below the testimonial are directions for use and an ingredient list specifying bi-carbonate of soda, sodium aluminum sulfate, and cornstarch. The label mentions a United Profit Sharing Coupon included in the package and features small circular vignettes of a mounted rider in the corners of the back panel border. Printed text along the top edge of the label states that the baking powder is packed in a patented moisture-proof tin.