[Wet mill processing iron and titanium ore, by crushing, grinding, and refining rock]

[Wet mill processing iron and titanium ore, by crushing, grinding, and refining rock]

Image: 7 5/8 x 9 5/8 in. (19.4 x 24.4 cm)
Paper: 8 1/8 x 10 in. (20.6 x 25.4 cm)
Credit Line
Gift of Michael Sonnenfeldt, 2013
Accession No. 2013.115.407