Link to the Image Source
Metropolitan Museum of Art

Artwork Details 

Title: Portrait Of A Child
Dated: <Unknown>
Medium: Watercolor on ivory in leatherette case
Dimensions: 2 1/8 x 1 11/16 in. (5.5 x 4.3 cm)
Location: Metropolitan Museum of Art
City, State: New York, NY
Notes:
Dale T. Johnson Fund, 2006