View of an advertising card for Grinnell Bros., advertising Krakauer pianos. Card depicts a woman holding a fan, surrounded by flowers. Printed on front: "Krakauer pianos. Embody in their construction the highest musical, artistic and mechanical ideals. Grinnell Bros., 219-223 Woodward Ave., Detroit, Mich. General representatives." Printed on back: "Grinnell Bros. Michigan's leading, largest, lowest priced music house. Steinway and other famous pianos. Seven stores. Detroit, 219-223 Woodward. Branches: Adrian, Bay City, Jackson, Saginaw, Kalamazoo, Port Huron."