REMOVE

1. Aquatint and hard ground etc …
2. United States
3. North American; American
4. Fine Arts Museums of San Fra …

WHAT

1. Aquatint and hard ground … (1)
2. Prints (1)

WHERE

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

WHO

1. Fine Arts Museums of San … (1)
2. Kushner, Robert (1)

WHEN

1. 1949 - (1)
2. 1980 (1)