1930s vintage industrial light shade with an exposed metal cage frame from Inland Glass Works out of Chicago. This is marked I.G.G. Standard Inland. It measures about 10 1/4" across and 2 7/8" over the fitter. It is about 7" high.
This shade is from an estate in northern Illinois that collected architectural salvage out of Chicago. We love the contrast and lines of this piece, it reminds us of Frank Lloyd Wright's designs.