This is a really good looking Bent Slag Glass lamp that is not marked. The large lamp stands 23 inches tall on its 7 inch beautifully colored sculpted base with shade. The original colors are well patinated and make a really nice looking lamp. Check out the photos. The bent variegated tan slag glass shade is 18 or 20 inches in diameter (corners or flats) and 8 1/4 inches tall. The nicely colored overlay is all present with its original coloring. The lamp has been correctly rewired and ...works perfectly. The interior of the sockets have been replaced using the original shells to retain the great looks of the lamp. Just a beautiful lamp for your home or office.