For sale, I have a rare antique student lamp. It's in pretty decent shape, with some denting to the base as pictured. It measures about 22" tall. It's fully adjustable. The center pipe has a groove. The set screw goes in it and holds the parts in place. The left-right adjustment of the shade is done with a set screw as shown in picture 7. Usually, the shade holder rotates around an ungrooved center pipe, which, at first, I thought it was missing on this one. The shade is 7" and is in excellent condition. No chips or cracks. Any information about this would be appreciated. Papal is accepted.