REMOVE

1. silver gelatin print
2. Electric furnaces
3. 1900
4. First half of the twentieth …

WHAT

1. Photographs (2)
2. silver gelatin print (2)

WHERE

1. North American; American (2)

WHO

1. Electric furnaces (2)
2. Louisiana State Museum (2)
3. Teunisson, John N. (2)

WHEN

1. 1949 (2)
2. First half of the twentie … (2)