REMOVE

1. North American; American
2. Conveyor belts
3. Louisiana State Museum
4. 1900
5. 1949

WHAT

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

WHERE

1. North American; American (1)

WHO

1. Conveyor belts (1)
2. Louisiana State Museum (1)
3. Teunisson, John N. (1)

WHEN

1. First half of the twentie … (1)