Grape and Cable Miniature Lamp
These lamps were constructed from the base of the Grape and Cable perfume bottle (made by Dugan). While they're generally considered to be from the classic era, I have no proof of their age. Dugan went out of business about 1931, so presumably before that date someone purchased a supply of the perfumes and added the fount. In 1998 a purple example brought $200; in 2012 another purple example sold for $525. In 2005, a celeste blue example, said to have been made for Sherman Hand, sold for $225.

Bear in mind that the item was reproduced in red for the Heart of America Carnival Glass club as a souvenir in 1981.