REMOVE

1. oil, paper, sand, and pen an …
2. Paintings
3. Smithsonian American Art Mus …
4. 1972
5. n.d.

WHAT

1. oil, paper, sand, and pen … (1)

WHERE

1. North American; American (1)

WHO

1. Smithsonian American Art … (1)
2. Unknown (1)

WHEN

1. 1906 (1)
2. after 1906 (1)