REMOVE

1. architecture, smokestack
2. US, NY, Niagara Falls
3. North American; American

WHAT

1. Photographs (2)
2. architecture, smokestack (2)
3. 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)