Caption:
Portraits of Mohammed II or Mehmed the Conqueror, Ottoman sultan, showing the Turkish Ouralian character, and Nadir Shah, or Thamas Kouli Khan, or the Slave of Thamas, 18th century conqueror. Caucasian Tatars. Handcoloured steel engraving by Lizars after an illustration by Charles Hamilton Smith from his Natural History of the Human Species, Edinburgh, W. H. Lizars, 1848.