1920s-1930s Traditional Lamp with 8-sided slag Glass Shade

The very pretty slag glass lamp has 2 bent arm sockets concealed under a stunning eight sided shade inset with slag glass in rich beiges, caramel and brown tones. The mixed metal fluted base has a bronze finish. The base is very heavy and it’s not going to fall over very easily   The shade is also has a mixed metal frame that was patinated with an antique bronze, The main stays have the remnants of gold gilding. Circling around the bottom is a wide filigree leaf border. The shade is topped by a fluted cap that coordinates with the base. The shade is held in place by a 6-sided metal finial.   There is no maker’s name on the base or shade.   The two lamp sockets are not identical. One has a twist knob and is stamped with a rating of 250 W. It is a bit newer than the other socket, still quite old. The other socket has a chain and is likely original, Ut shows no rating, but is stamped with rows of lines around its circumference. I’d date this socket to the late 1920s.   MEASUREMENTS   Base