This is a standard size hanging oil lamp frame for a 14" shade. Still needing a smoke bell, shade, drop in font with burner and chimney. With that said, the motor is working and lamp goes up and down with ease. All of the rings and motor cover match. I believe what is here has always been together. An easy one to get setup and back on the ceiling for use. See many photos for best description. Looks to have not been polished, at least not any time recently. 

Well worth your time to get right!