Antique 1911 Calendar Plate Harry H. Kurtz Philadelphia SV Porcelain with Hanger. The back has Harry H. Kurtz Girard Ave. & Marshall St. and below that is the maker mark of K.T. & K. Co. (Knowles, Taylor & Knowles) 308. Many plates have the advertising name on the front, this one is nicely placed on the back. Inclues the plate hanger as shown, the hanger will not be removed from the plate for shipping. The plate is semi-vitreous porcelain and it has crazing throughout and some scratches, the most noticeable scratch is next to one eye as seen in the pictures.