REMOVE

1. Photographs
2. Canada, ONT, Toronto

WHAT

1. architecture, stairway (1)
2. gelatin silver print (1)
3. people, being photographe … (1)
4. personage, social scienti … (1)

WHERE

1. Canada, ONT, Toronto (2)
2. North American; American (1)
3. North American; Canadian (1)

WHO

1. George Eastman House (2)
2. Karsh, Yousuf (1)
3. Mertin, Roger (1)

WHEN

1. 1973 (1)
2. 1974 (1)
3. April 1974 (1)