I have a late 1800s floor lamp with a dual-socket cluster featuring pull chains wood base with ornate neoclassical floral and leaf patterns. The base looks to have been assembled in slices (like say a butchers block is made). It has a stamped maker’s mark on the metal socket base, resembling overlapping letters or a stylized logo (photo attached). The lamp is in good working condition and has not been significantly restored or modified other than power cord was replaced at some point. Entire base stands approximately 62", and 68" at peak of the finial. Base at the bottom is ~14" diameter. I’m seeking more information on its origin, manufacturer, and estimated value. Thank you!

14" diameter base. Wood base stands 62" top to bottom, 68" to top of finial.