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1. A Bill for an Act, 1961-1963 - Draft, St. Paul, Minnesota

2. A Bill for An Act, 1961 - Draft, St. Paul, Minnesota

3. A Bill for An Act, 1963 - Draft, St. Paul, Minnesota

4. A Bill for An Act, 1963 - Draft, St. Paul, Minnesota

5. A Bill for An Act, 1963 - Draft, St. Paul, Minnesota

6. A Bill for an Act, 1961-1963 - Draft, St. Paul, Minnesota

7. A Bill for an Act, 1961-1963 - Draft, St. Paul, Minnesota

8. A Bill for an Act, 1961-1963 - Draft, St. Paul, Minnesota

9. A Bill for an Act, 1961-1963 - Draft, St. Paul, Minnesota

10. A Bill for an Act, 1961-1963 - Draft, St. Paul, Minnesota

11. A Bill for an Act, 1961-1963 - Draft, St. Paul, Minnesota

12. A Bill for an Act, 1961-1963 - Draft, St. Paul, Minnesota

13. A Bill for An Act, February 16, 1962 - Draft, St. Paul, Minnesota

14. A Bill for An Act, HF 897 - Draft, St. Paul, Minnesota

15. A Bill for An Act, HF 897 - Draft, St. Paul, Minnesota

16. A Bill for An Act, HF 116, Extra Session 1961 - Draft, St. Paul, Minnesota

17. A Bill for an Act, HF 115, Extra Session - Draft, St. Paul, Minnesota

18. Adams Mine, Eveleth, Minnesota

19. Adriatic Mine location, Mesaba, Minnesota

20. Adriatic Mine, Mesaba, Minnesota

21. Aerial view of Spruce dump slide, Eveleth, Minnesota

22. A. Guthrie & Company camp, Corsica Mine, Biwabik, Minnesota

23. A. Guthrie & Company camp, Corsica Mine, Biwabik, Minnesota

24. A. Guthrie & Company camp, Corsica Mine, Biwabik, Minnesota

25. A. Guthrie & Company, Corsica Mine, Biwabik, Minnesota

26. A. Guthrie & Company, Corsica Mine, Biwabik, Minnesota

27. A. Guthrie & Company, Corsica Mine, Biwabik, Minnesota

28. A. Guthrie & Company Corsica Mine, Biwabik, Minnesota

29. Air compressors used at Leonidas Mine, Eveleth, Minnesota

30. Albany Milling Pit looking east, Hibbing, Minnesota

31. Albany Mine, Hibbing, Minnesota

32. Alpena Mine in Virginia, Minnesota

33. Alpena Mine, Virginia, Minnesota

34. American Institute of Mining Engineers inspect Hull-Rust mine, Hibbing, Minnesota

35. Ash chutes on steam shovels, Eveleth, Minnesota

36. Ash pan on steam shovels

37. Attendees of a general safety committee meeting, Eveleth, Minnesota

38. Automatic switch at the Spruce stockpile, Eveleth, Minnesota

39. Automatic switch at the Spruce stockpile, Eveleth, Minnesota

40. Automatic warning bell for cage hoists, Leonidas, Minnesota

41. Automatic warning bell for cage hoists, Leonidas, Minnesota

42. Automatic warning bell for cage hoists, Leonidas, Minnesota

43. Bangor Mine Boilers #122, Biwabik, Minnesota

44. Bangor Mine breeching installed on #6 Boiler, Biwabik, Minnesota

45. Bangor Mine Concrete Stack from west, Biwabik, Minnesota

46. Bangor Mine head frame, Embarrass Township, Minnesota

47. Bangor Mine installing Fuel Economizer, Pump, and Heater, Biwabik, Minnesota

48. Bangor Mine showing Stokers in operation, Biwabik, Minnesota

49. Bangor Mine, showing stokers in operation, Biwabik, Minnesota

50. Bangor Mine stokers installed on all boilers, Biwabik, Minnesota

51. Battering tongs, Eveleth, Minnesota

52. Battering tongs in use, Eveleth, Minnesota

53. Beginning construction of wood ore docks on Agate Bay, Lake Superior, Two Harbors, Minnesota

54. Biwabik Mine, Biwabik, Minnesota

55. Biwabik Mine, Biwabik, Minnesota

56. Biwabik Mine east, Biwabik, Minnesota

57. Blasters shelter house, Eveleth, Minnesota

58. Blasters shelter house, Eveleth, Minnesota

59. Blasting down the old Elba Mine smokestack, Biwabik, Minnesota

60. Blowout pipe, Eveleth, Minnesota

61. Blue Mine, northern Minnesota

62. Boiler Plant Burt Shops, Hibbing, Minnesota

63. Boring holes for charge, Eveleth, Minnesota

64. Breitung Pit at Soudan Mine on the Vermillion Range, near Tower, Minnesota

65. Bucyrus Steam Shovel in Iron Ore Mine, Hibbing, Minnesota

66. Bucyrus Steam Shovel in Iron Ore Mine, Hibbing, Minnesota

67. Building of second wood ore dock on Agate Bay, Lake Superior, Two Harbors, Minnesota

68. Buildings on fire, Virginia, Minnesota

69. Burt Mine, Hibbing, Minnesota

70. Burt Shops erecting facility, Hibbing, Minnesota

71. Burt Shops erecting facility, Hibbing, Minnesota

72. Cabinet for stretchers at Fayal Mine, Eveleth, Minnesota

73. Cabinet for stretchers at Fayal Mine, Eveleth, Minnesota

74. Caboose for timber trains, Eveleth, Minnesota

75. Caboose for timber trains, Eveleth, Minnesota

76. Caboose used to transport men, Biwabik, Minnesota

77. Caboose used to transport men, Spruce Mine, Eveleth, Minnesota

78. Caboose used to transport miners, Eveleth, Minnesota

79. Canton Mine, Biwabik, Minnesota

80. Canton Mine, near Biwabik, Minnesota

81. Catenaries along the mine railroad track at the Susquehanna Mine, Hibbing, Minnesota

82. Cave-in at an underground mine, Negaunee, Michigan

83. Central corridor, Glen Location, Minnesota

84. Chain mat held up to show construction, Eveleth, Minnesota

85. Chain mat ready for use, Eveleth, Minnesota

86. Chains and tongs, Eveleth, Minnesota

87. Chandler Iron Mine, Ely, Minnesota

88. Chandler Mine, Ely, Minnesota

89. Chandler Mine No. 3, Ely, Minnesota

90. Chipping shield and gear guard, Leonidas Mine, Eveleth, Minnesota

91. Chipping shield and gear guard, Leonidas, Minnesota

92. Clam shell and tower, northern Minnesota

93. Class C Sanderson Cyclone drill 239-P11, northern Minnesota

94. Clement K. Quinn & Company Mahnomen Mine, Ironton, Minnesota

95. Clyde Iron crane at unidentified site, Minnesota

96. Colorized Hull-Rust mine, Hibbing, Minnesota

97. Colorized Mahomen Mine, Ironton City, Minnesota

98. Colorized view of Hull-Rust open pit mine, Hibbing, Minnesota

99. Colorized view of open pit mine, Hibbing, Minnesota

100. Conveyor loading ore cars, northern Minnesota