How do I identify a Tiffany table lamp?

Early 20th C. Tiffany Studios Lemon Leaf Table Lamp. Made in U.S.A.

This important Tiffany Studios floor lamp features a splendid 24-inch Curtain Border shade and its original patinated bronze base. Among Tiffany’s most iconic designs, this monumenta...

This early 20th century original Tiffany Studios floor lamp has an orange color geometric lampshade accented with a beautiful wide leaded "Greek Key” border. The shade is signed “Tiffany Studios, New York” & numbered “1907”. This shade rests upon a dore’ bronze floor base signed “ Tiffany Studios, New York” & numbered “387”. Height 65” Circumference: 22” NO SHIPPING. PICK UP ONLY...

This vintage early 20th century Tiffany Studios floor lamp is decorated with a “Roman” design leaded lampshade. The shade is signed “Tiffany Studios, New York” & numbered “1564”. The shade consists of a beautiful blend of mottled colors within this “Roman” motif. The 25” diameter lampshade rests on a slender patinated bronze junior decorated floor base, signed “Tiffany Studios, New York”. Height: 63” Diameter: 25” NO SHIPPING! PICK UP ONLY!

This vintage original Tiffany Studios floor lamp is designed with a paneled “linenfold” gold color shade, signed Tiffany Studios, New York and numbered 1952, Patent applied for. This shade rests comfortably on a gold dore’ bronze floor base with a six light cluster & an in line floor switch. The base is stamped Tiffany Studios, New York and numbered 379. Height 62” Circumference 20” *** NO SHIPPING AVAILABLE. PICK UP ONLY...

This exquisite Tiffany Studios “Prism” chandelier, features five shades comprised of iridescent gold glass "Prisms" suspended from intricately sculpted bronze heat cap. Each prism shimmers with great transparency, mesmerizing with its iridescence and chains with alternating chain links and bronze spheres highlighting each chain. Tiffany wrote extensively on the prismatic color theory in the Scientific American— his conceptual understanding derived from Isaac Newton’s book “Optics.” Newton famously proved that white light consisted of a miscellany of colors using his prism experiment. Late nineteenth-century publications suggested that amateur scientists use chandelier prisms to try Newton’s experiment at home. As a man of the modern age, Tiffany believed that science and art must cofunction for the greatest effect. Product Details: Item #: L-21482 Artist: Tiffany Studios New York Country: United States Circa: 1910 Dimensions: 34" height, 16" diameter Materials: Bronze, Glass Literature: Duncan, Alastair, and Tiffany Studios (New York, N.Y.). 2007. Tiffany Lamps and Metalware : An Illustrated Reference to over 2000 Models. 1st ed. Woodbridge: Antique Collector’s Club. p. 268 no. 1038 Macklowe Gallery Curator's Notes: Tiffany’s Moorish...