Link to the Image Source
Metropolitan Museum of Art

Artwork Details 

Title: Brock Livingston Delaplaine
Dated: 1817
Medium: Enamel on copper
Dimensions: Sight: 3 x 2 1/2 in. (7.6 x 6.4 cm)
Location: Metropolitan Museum of Art
City, State: New York, NY
Notes:
Maria DeWitt Jesup Fund, 1985