Hello Jamie, I’m very glad that you chose Mearto for your online appraisal, Considering the photographs, overall pattern, material, glass quality and the colours, I concluded that this is an Entirely Hand Made Tiffany Favrile Arabian lamp. Art Nouveau, circa 1920 Tiffany Arabian Lamp, blown glass shade and metal base. Shade is decorated with a green iridescent zipper design against a wave gold and green-white background. Top of shade is further decorated with three applied gold iridescent prunts. Usually the shade is signed on interior “L.C.T. Favrile” on these pieces and base is signed on underside “L.C. Tiffany Favrile”. The piece is in good condition without visible problems. Entirely hand made. Dimensions: 13.5 Inches High Condition: The piece is in good condition without visible problems Provenance: Belonged to the current owner’s mother. 5000-7000$. Please don’t hesitate to reach us again for more online appraisals on your precious items, thank you for choosing Mearto.