Art Nouveau lamp slave girl under palm tree by Emmanuel Villanis, removable skirt, erotic. 
Art metal, cold painted patina. France 1900. 
H. 82 cm. 

A slave girl sitting under a palm tree, her hands chained behind her back.
She is wearing earrings, a red turban and a red removable skirt. 

This is a unique lamp. 
Illustrations of this model as a sculpture can be found:
on page 23 of
Emmanuel Villanis, Josje Hortulanus- de Mik. (skirt missing)
on page 643 of
Les bronzes de XIXe siècle, Pierre Kjellberg, Les éditions des amateurs.
and on page 606 of
Bronzes, sculptors and founders, H. Berman, Abage.
A description of this model can be found in
Emmanuel Villanis, un sculpteur art nouveau, Pascal Launay, Thélès.