Open pit iron mining (with 5-ton steam shovels), Hibbing, Minn. 7952 interpositive
Underwood & Underwood
Silver gelatin on glass
1 item, 4" x 5"
Currently stored in box 3.2.54 .
IRON & STEEL INDUSTRY
Smithsonian Institution, National Museum of American History : Archives Center. P.O. Box 37012, Suite 1100, MRC 601, Constitution Ave., between 12th and 14th Sts., N.W., Washington, D.C. 20013-7012. Call 202-633-3270 for appointment. Fax: 202-786-2453