This is a nice antique brass & glass table / desk lamp with an art glass green cased shade with floral decoration. It has a little marking on the knob that turns the light on & off. It resembles a Westmoreland glass marking but I'm pretty confident that it's not that. I know too that symbol is a very popular mark on things from the Pennsylvania area. In pretty nice shape as the pics show with some minor wear to the brass as well as the glass having some scratches like that seen in pic 12 and it comes exactly as shown.
It measures 21 1/4" tall and the base is 8 1/4" in diameter. The shade is 12 in diameter.The item "Antique Brass & Glass Table / Desk Lamp Green Cased Glass Floral Decoration" is in sale since Wednesday, July 4, 2018. This item is in the category "Antiques\Decorative Arts\Lamps". The seller is "nceantiqueswntd" and is located in Saint Louis, Missouri. This item can be shipped worldwide.