REMOVE

1. teaching
2. ink
3. 1946
4. 1945

WHAT

1. Information Forms (hierar … (1)
2. graphite pencils (1)

WHO

1. Clyfford Still; Still, Cl … (1)
2. Rothko, Mark (1)
3. Rothkowitz, Marcus Yakovl … (1)
4. Still, Clyfford (1)

WHEN

1. between 1945-1946 (1)