File includes correspondence, orders, contracts, technical drawings and 1 photograph from 1914 related to the construction of the chimney stack connected to the Powerhouse (Building 1) and the Silver Nitrate plant (Building 3) at Kodak Heights. Correspondents include members of Canadian Kodak Co., Ltd., Eastman Kodak Company, Alphons Custodis Chimney Construction Company of New York, and its Canadian subsidiary, Custodis Canadian Chimney Company, Ltd. of Toronto. The latter company was contracted to design and construct the chimney. TThe project was executed under the supervision of C.K. Flint (a.k.a. C.O. Flint), a former employee at Kodak Park in Rochester, who later became Engineer in Charge at Canadian Kodak Co. Ltd. Construction of the chimney stack began on June 24, 1914 and finished September 17, 1914.