Index Cards

R Pilot Knob Pellet Company.

835 Papers, n.d.

Granite City Steel Company.

Hanna Mining Company.

Iron County (Mo.).

Iron industry and trade—Missouri—Iron County.

Iron industry and trade—Missouri—Pilot Knob.

Iron mines and mining—Missouri—Iron County.

Iron mines and mining—Missouri—Pilot Knob.

Iron ores—Missouri—Pilot Knob.

Pilot Knob (Mo.).

Pilot Knob Pellet Company.

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