Link to the Image Source

Artwork Details 

Title: Benjamin West
Dated: circa 1785
Medium: oil on canvas
Dimensions: 35 1/2 in. x 27 1/2 in. (902 mm x 699 mm)
Location: National Portrait Gallery
City, State: Washington, D.C.
Notes:
Benjamin West (1738-1820), History painter and President of the Royal Academy