Link to the Image Source
Smithsonian American Art Museum

Artwork Details 

Title: Study for The Black Cloud
Dated: ca. 1930-1931
Medium: Oil on paperboard
Dimensions: 7 x 8 7/8 in. (17.9 x 22.7 cm)
Location: Smithsonian American Art Museum
City, State: Washington, D.C.
Credit Line:
Gift of Herbert Brook