REMOVE

1. pen and ink
2. Military officers
3. Defense industry.
4. World War, 1914-1918.
5. Library of Congress Prints a …
6. 1915

WHAT

1. Defense industry. (1)
2. Drawings and Watercolors (1)
3. Editorial cartoons (1)
4. Military officers (1)
5. Submarines (1)

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WHO

1. Library of Congress Print … (1)
2. Rogers, W. A. (1)

WHEN

1. 1854-1931 (1)
2. 1915? (1)