REMOVE

1. Photographs
2. albumen print
3. European; Northern European; …
4. Germany, Cologne

WHAT

1. albumen print (3)
2. cityscape, from river (3)
3. architecture, castle (2)
4. architecture, cathedral (1)

WHERE

1. European; Northern Europe … (3)
2. Germany, Cologne (3)

WHO

1. George Eastman House (3)
2. Schmitz, Anselm (3)

WHEN

1. 1880 (2)
2. 1879 (1)