This folder contains correspondence and other documents relating to operations at the Dunderland works. Most of the letters are by Stephen Hungerford Pollen, manager and secretary of the Dunderland Iron Ore Co., Ltd., and William Simpkin, the draftsman responsible for executing Edison's designs. Included are progress reports, letters dealing with briquettes, and items pertaining to Edison's approval of alterations in the crushing rolls. Also included are blueprints of the blowers and the blower house. One letter discusses financing for Edison's storage battery.
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