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Colorado & New England Mining Co
Colorado & New England Mining Co 1882 - $500 bond - $675
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Colorado & New Mexico Consolidated Mining & Smelting Co
Colorado & New Mexico Consolidated Mining & Smelting Co 1886 - $385
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Colorado Central Consolidated Mining Co
Colorado Central Consolidated Mining Co 1895 - $295
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Colorado Consolidated Mining & Tunnel Co
Colorado Consolidated Mining & Tunnel Co 1882 - Leadville - $485
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Colorado Gold Mining Co
Colorado Gold Mining Co 1870 - Colorado Territory - $175
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Colorado Gold Mining Co Of Philadelphia
Colorado Gold Mining Co Of Philadelphia 1870 - Colorado Territory - $585
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Colorado Mine Developing Co
Colorado Mine Developing Co 1880 - Leadville Colorado - $275
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Colorado Mining Exchange
Colorado Mining Exchange 1880 - fantastic letter - page 1 - $775
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Colorado Mining Exchange
Colorado Mining Exchange 1880 - fantastic letter - page 2 & envelope
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Colorado Territory Mining Claim
Colorado Territory 1864 - mining claim - $385
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Colorado Territory National Silver Mining Co of Baltimore City
Colorado Territory National Silver Mining Co of Baltimore City 1869 - Maryland - $975
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Columbia Gold & Silver Mining Co
Columbia Gold & Silver Mining Co 1882 - Colorado - $175
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Columbia Gulch Fluming Co
Columbia Gulch Fluming Co 1855 - California - $575
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Columbian Coal Co
Columbian Coal Co 1866 - $385
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Columbus Gold Mining Company
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Columpio Silver Mining Co 1864 Early Sinaloa Mexico - EX RARE $295 issued California .jpg
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Comet Mining Company - 1883 Utah $69
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Comfort Consolidated Mining 1888 Ex Rare - Louisville Kentucky $295.jpg
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Common Wealth Mining & Milling Co
Common Wealth Mining & Milling Co 1913 - Arizona Territory - $185
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Commonwealth Consolidated Mining Co
Commonwealth Consolidated Mining Co 1881 - Leadville Colorado - $485
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Commonwealth Consolidated Mining Co
Commonwealth Consolidated Mining Co 1890 - California - $265
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Comstock - gould and Curry Mine Nevada Mining Map.jpg
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Comstock Tunnel Co
Comstock Tunnel Co 1889 - Nevada - scarce as a stock - $135
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Consolidated Alaskan Co
Consolidated Alaskan Co 1905 - Alaska - $185
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Consolidated Arizona Gold Silver Mining - EX RARE Stock Certificate - 1880 Arivaca Mining District $395 .jpg
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Consolidated Arizona Smelting Co
Consolidated Arizona Smelting Co 1908 - Arizona - $95
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Consolidated Nighthawk & Nightingale Gold Mining Co
Consolidated Nighthawk & Nightingale Gold Mining Co 1892 - Cripple Creek Colorado - $585
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Consolidated Silver Mining 1868 Nevada 1868 Nevada Ex Rare $395.jpg
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Consumers Coal Co
Consumers Coal Co 1882 - $135
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Copete Mining Co
Copete Mining Co 1900 - Mexico - $285
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Copper Bell Mining Co
Copper Bell Mining Co 1890 - Montana - $145
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Copper Belt Mining Co
Copper Belt Mining Co 1884 - Arizona Territory - $265
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Copper Chief Mining Company 1902 New Mwxico - only one i have ever seen $495 .jpg
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Copper Emperor Mining Co
Copper Emperor Mining Co 1883 - Arizona Territory - $375
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Copper Hill Mining Company 1863 Soledad District Los Angeles County California - EX EX RARE $1385
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Copperopolis Mining Co
Copperopolis Mining Co 1865 - California - $975
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