REMOVE

1. architecture, military
2. albumen print
3. North American; American
4. US, NV, Black Canon
5. O'Sullivan, Timothy H.

WHAT

1. Photographs (1)
2. albumen print (1)
3. architecture, military (1)

WHERE

1. North American; American (1)
2. US, NV, Black Canon (1)

WHO

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

WHEN

1. 1871 (1)