Vintage Brass Single selling Arm Student Lamp Acorn Form

selling Vintage Brass Single Arm Student Lamp Acorn Form, with green glass shade.
Great lamp in wonderful condition with minor issues: small dent on one side of brass "acorn", brass could use some polish if brighter finish is desired.
This is an unbranded lamp so maker is unknown, arm is stationary on the vertical, does swing around around horizontally. Wiring looks original with no fraying or damage. Works!