A few examples of appraisal values for
HOUGHTON CO
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- THREE SPECIMENS OF NATIVE COPPER Comprising
THREE SPECIMENS OF NATIVE COPPER Comprising a specimen of copper and Prehnite, from Osceola Mine, Ahmeek, Houghton Co. MI, 2 1/2 x 2 1/4 x 2 1/2 in.; a crystalline nugget, from Caledonia Mine, Ontonagon Co., MI, 3 1/2 x 1 7/8 x 1/2 in.; and a crystalline nugget, partly embedded in matrix, also from Caledonia Mine, 4 x 4 3/4 x 2 3/4 in.
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