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B&w Photograph (56)
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ca 1940-1950 (24)
ca 1945 (23)
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1910 (2)
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results 1-20 of 104 item(s)  page 1 of 6 : ( <<  1  2  3  4  5  6  >> ) :: previous : next
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21 Pit Headframe & Section Map
1. 21 Pit Headframe & Section Map
Acetylene Miners' Lamp
2. Acetylene Miners' Lamp
calcite
3. calcite
Cheever Iron Ore
4. Cheever Iron Ore
Cheever Mines
5. Cheever Mines
Dip Needle
6. Dip Needle
feldspar
7. feldspar
garnet
8. garnet
Geologic Specimen: Biotite
9. Geologic Specimen: Biotite
granite-quartz
10. granite-quartz
Iron Analysis Records
11. Iron Analysis Records
Iron Ore Tract, Essex County; Lands Owned by Port Henry Iron Ore Company
12. Iron Ore Tract, Essex County; Lands Owned by Port Henry Iron Ore Company
Magnetite
13. Magnetite
Magnetite Concentrate
14. Magnetite Concentrate
magnetite crystal
15. magnetite crystal
magnetite crystals
16. magnetite crystals
magnetite with drill holes
17. magnetite with drill holes
Magnetite-Jasper
18. Magnetite-Jasper
Magnetite-Quartz
19. Magnetite-Quartz
Map of 50 Acres-
20. Map of 50 Acres-
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results 1-20 of 104 item(s)  page 1 of 6 : ( <<  1  2  3  4  5  6  >> ) :: previous : next