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Man cutting coal in Consol. Coal Co. Mine in Kentucky. Note the roof supports using jacks.

49. Miner Cutting Coal in Consol Mine in Kentucky

50. Joy Manufacturing Company Continuous Mining Machine

Two men operating a loading machine.

51. Loading Machine in Action at Mine No. 32

Two miners operate the breast type coal cutting machine.

52. Breast Type Coal Cutting Machine, Consol Mine No. 26, Watson, W. Va.

A gear driven cutting machine stands on the track.

53. Very Old Track Mounted Cutting Machine

Two miners operate a track mounted coal cutting machine.

54. Track Mounted Cutting Machine

Caption on back reads, 'Making a cut in the coal face is this Mastodon of the machine age - an underground cutter.  Rubber tired for mobility, and mounting a 9-foot cutting blade armed with whirring steel bits, it can cut a full 360 degree arc.  This and similar machines give America's bituminous coal mines almost unlimited capacity for production.'

55. Miners Operating a Cutting Machine at Mine No. 32, Consolidation Coal Company, Owings, W. Va.

Two miners cut coal at Pursglove No. 15

56. Miners Operating a Cutting Machine in Pursglove No. 15 Mine

57. Miners Operating a Cutting Machine

58. Miner Operates a Coal Cutting Machine Prior to Blasting

Two men working with a rubber tire mounted cutting machine.

59. Miners Operating a Cutting Machine

60. Making a Cut in Coal Face Prior to 'Shooting Down' Coal

61. Miner Operating a Coal Loading Machine

62. Coal on Conveyor

63. Coal Loading Machine

Two men using large bits to drill prior to placing charges.

64. Drilling Prior to Placing Charges

Continuous miner in action.

65. Lee Norse CM28E Continuous Miner

A continuous mining machine operating in a four foot seam.

66. Continuous Mining Machine in Operation in a Four Foot Seam

Two men standing next to a continuous mining machine.

67. Continuous Mining Machine

Man operating a JMC1 continuous miner.

68. Joy Manufacturing Company Continuous Mining Machine

A large Marietta Miner Continuous Mining Machine.

69. Marietta Miner Continuous Mining Machine

70. Manufacturer's Photo of a Coal Loading Machine

Joy executives stand beside a continuous mining machine.

71. Joy Manufacturing Company Executives Examine a Joy Continuous Mining Machine

A continuous miner, model 2BT-2 Twin Borer, sits on display.

72. Continuous Mining Machine, Joy Manufacturing Company