Link to the Image Source
Metropolitan Museum of Art

Artwork Details 

Title: Portrait Of A Lady
Dated: 1834
Medium: Watercolor on ivory in cast and chased foliate gold locket
Dimensions: 2 3/8 x 2 in. (6 x 5.1 cm)
Location: Metropolitan Museum of Art
City, State: New York, NY
Notes:
Fletcher Fund, 1938