REMOVE

1. pen andblack ink
2. United States
3. North American; American
4. Fine Arts Museums of San Fra …

WHAT

1. Drawings and Watercolors (2)
2. pen andblack ink (2)

WHERE

1. North American; American (2)
2. United States (2)

WHO

1. Fine Arts Museums of San … (2)
2. Nash, Bob (2)

WHEN

1. 1918 - (2)
2. 1961 (2)