REMOVE

1. Photographs
2. albumen print
3. architecture, mining
4. cityscape

WHAT

1. albumen print (2)
2. architecture, mining (2)
3. landscape, mountains (1)

WHERE

1. North American; American (2)
2. US, NV, Gold Hill (2)

WHO

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

WHEN

1. 1867 (2)