This is a very rare Chalcography of Nader Shah Afshar which i found in Paris, i think there are more copies of this in Italy and Germany, i am looking for them.

In another part of the photo it is written like this: Nader Shah of Persia - Iran King Islam Kupferstich Portrait (Chalcography are engravings on copper plates used for printmaking and illustrations, although the term has also been used of engravings on any type of metal) engraving gravure, Paris 1750 (by Dupuis, Nicolas-Gabriel, i know his works).