REMOVE

1. architecture, smokestack
2. Photographs
3. US, NY, Niagara Falls

WHAT

1. architecture, smokestack (2)
2. color print, chromogenic … (2)

WHERE

1. North American; American (2)
2. US, NY, Niagara Falls (2)

WHO

1. George Eastman House (2)
2. Pfahl, John (2)

WHEN

1. 1989 (2)