Link to the Image Source
Metropolitan Museum of Art

Artwork Details 

Title: John Brown
Dated: 1786
Medium: Watercolor on ivory
Dimensions: 1 3/4 x 1 11/32 in. (4.4 x 3.4 cm)
Location: Metropolitan Museum of Art
City, State: New York, NY
Notes:
Morris K. Jesup Fund, 1936