1880s kerosene oil lamp rewired for electricity at some point... though the cord needs work so you'll need to rewire it again if you want an electric light.
We love the patina on the old brass lamp base, and the quilted milk glass shade. This is such a pretty lamp!
It's 12" tall to the top of the light bulb socket, and 19" tall to the top of the glass chimney shade. The milk glass shade measures 9 3/4" across the fitter x about 6 1/2" in height.