Mining crib

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“When rock is reached, a curb or crib of either wood or iron is inserted."—Finley, 1917

Keywords

iron, Rock, crib, wood, mine, mining, curve, curb

Galleries

Mining

Source

Finley, John H. Nelson's Perpetual Loose-Leaf Encyclopedia (New York City: Thomas Nelson and Sons, 1917) 11:134

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