REMOVE

1. US, WY

WHAT

1. Photographs (2)
2. albumen print (1)
3. landscape, mountains (1)
4. landscape, river valley (1)
5. platinum print (1)

WHERE

1. North American; American (2)
2. US, WY (2)

WHO

1. George Eastman House (2)
2. O'Sullivan, Timothy H. (1)
3. Szabo, Steve (1)

WHEN

1. 1869 (1)
2. 1973 (1)