In 1770 Russell turned from oils to pastel, using grey or blue paper and smudging the colours before accenting with black chalk. On occasions he also applied chalk to paper, such as in this self-portrait.
Location: National Portrait Gallery, London, Great Britain
Date: 1780
Medium: black, white and red chalk with some pencil on grey paper
Dimensions: 13.11 x 8.7 inches
You can find more information on National Portrait Gallery website here.
