Beautiful Antique Lamp Shade

antique Bradley & Hubbard Arts & Crafts style slag glass lamp shade? The shade features green slag glass panels in a windowpane design with a floral border. The frame has a verdigris patinated bronze finish. Slag glass lamps are highly collectible, with values ranging from \$50 to over \$1500. Bradley & Hubbard Manufacturing Co. was a prominent American producer of these lamps in the late 19th and early 20th centuries. The shade shown is an octagonal shape. As shown in photos 1 triangle missing and looks like 2 may have been glued long ago. Beautiful piece to have possibly replace glass. As said not sure the brand of shade but absolutly beautiful and heavy. width 15.5 11.5 height will remove glass and place inside padded envelop when ship weight 7.5 pounds may weigh over