Link to the Image Source
Metropolitan Museum of Art

Artwork Details 

Title: Samuel Denman
Dated: <Unknown>
Medium: Watercolor on ivory in gold locket
Dimensions: 2 13/16 x 2 5/16 in. (7.1 x 5.9 cm)
Location: Metropolitan Museum of Art
City, State: New York, NY
Notes:
Dale T. Johnson Fund