Link to the Image Source
Metropolitan Museum of Art

Artwork Details 

Title: Self Portrait
Dated: 1834–36
Medium: Watercolor on ivory in gold foliate locket
Dimensions: 1 15/16 x 1 9/16 in. (4.9 x 4 cm)
Location: Metropolitan Museum of Art
City, State: New York, NY
Notes:
Maria DeWitt Jesup Fund, 1990