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Ed Koch welding a repair on a "yellow car", a rocker dump car, which dumped ore to the side. The frame and wheels can be seen in the lower front foreground.
Air operated mucking machine. The scoop goes over the mucking machine and empties the ore into the car behind. Miners also used these cars to move mining timbers throughout the mine.
Air operated mucking machine preparing to load material. The scoop would go over the mucking machine and empty the ore into the cart behind. Operator controls were at the left side of the machine.
O.A. McClain and Roy Long standing beside a completely rebuilt mine car at the Gilman Mine. An "eye" is seen with chains attached at the bottom of the cart. The eye was used to hook the mine cars together in a series of small trains for hauling ore.
Ed Koch welding a repair on a "yellow car", a rocker dump car, which dumped ore to the side. The frame and wheels can be seen in the lower front foreground.
A compressed air-driven mucking machine at Gilman. The bucket has just been dumped into the ore car behind and is preparing to recover and pick up another load of ore.