REMOVE

1. gelatin silver print
2. people, being photographed
3. architecture, stairway
4. Canada, ONT, Toronto
5. 1973

WHAT

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

WHERE

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

WHO

1. George Eastman House (1)
2. Mertin, Roger (1)