Sir..thanks for your reply. But my question... Because I originally bought the optimus 200p, this lampshade was given to me by the seller.... So it can be used directly in optimis 258? Or can it be used on the lamp in the lower left corner?
I think the shade you have is for either the 207 or 307 (depending on size). It all depends on how it is attached to the enamel reflector. The shade for the 259 fits over the top of the reflector with some sort of frame and the 207 shade clips into the inside edge of the reflector. You can get an idea from these two images.
I have never seen a 259 and this image is the only one I know of. It looks like the shade is held by a wire frame that goes over the top of the standard reflector. All I can do is try to interpret the picture.