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Three men standing next to an exploratory wagon drill

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Caption reads: "Minerals Engineering Company's wagon drill as assembled at their Grand Junction plant, designed for exploratory drilling up to 135 foot depth. Minerals Engineering Co. has three of these drills drilling in the uranium fields of Colorado and Utah. W. G. Haldane, Treasurer, Arch F. Boyd, Secretary, and Geo. Hertzke, Master Mechanic, inspect the drill unit before its journey to the field. Oct 1-52."
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Copyright retained by Colorado Mining Association.
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