REMOVE

1. Photographs
2. gelatin silver print
3. architecture, stairway
4. Canada, ONT, Toronto
5. Mertin, Roger

WHAT

1. architecture, stairway (1)
2. gelatin silver print (1)
3. 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)

WHEN

1. 1973 (1)