An American Art Nouveau patinated cast bronze "Ribbed Mushroom" tablel lamp base decorated with a ribbed ecoration on the base further decorated with three arms. The base retians its original patina and sockets. The base is signed, "Tiffany Studios New York S1549/3" The base can accomadte a 16 in. - 17 in. leaded stained glass shade and or a favrile glass shade.