The auction info is correct as its U.S. Glass Carrara line & the color is Jade. The Carrara line was made in 1922 through 1924 at Factory G, Glassport PA. You will also find the Carrara line in several Tiffin references which technically speaking is incorrect because Carrara was not made in Factory R, Tiffin, OH. The confusion exists because UGS was a conglomerate with many factories, however in September 1927 all glass produced by the conglomerate was named Tiffin regardless of what factory produced the product, but in this case the dates of Carrara production predates the use of the word Tiffin. Colors include Coral (an orangy red) Jade, Pearl Blue & a strange purplish opaque that was never named. The glass itself can be found in a good solid color or not so solid with blackish swirls or dots as evidently batch quality was not uniform. Ken