Mining Equipment from 1910-1920

	Mining machine in operation
	Mining machine traveling under its own power to cut coal in another heading
	First mine car of coal, loaded August 30, 1913.
	Mules hauling mine cars of coal-- eventually the coal will be hauled by electric power.
	Mine opening No. 301
	Mine motor bringing out a trip of loaded cars
	Tipple-- Mine No. 330
	Tipple-- Mine No. 301.  First loaded in railroad cars, August 30, 1913
	The Type of Machine illustrated is known as the "JD" Type and is a modification of Jeffrey's 28-A SHORTWALL Coal Cutter mounted on a locomotive turret truck.
	Dirt seams can be cut and gobbled, leaving a clean, marketable coal.  Less powder is required for shooting down; the coal is not shattered.  Less danger from blown out shots.  Protects tender roof.