Philosopher Adam Smith.
By Etching created by Cadell and Davies (1811), John Horsburgh (1828) or R.C. Bell (1872). The original depiction of Smith was created in 1787 by James Tassie in the form of an enamel paste medallion. Smith did not usually sit for his portrait, so a considerable number of engravings and busts of Smith were made not from observation but from the same enamel medallion produced by Tassie, an artist who could convince Smith to sit. [Public domain], via Wikimedia Commons