Abstract

Correspondence, 1899-1913, consisting of exchanges between James Cooper, the superintendent of the Calumet and Hecla Mining Company's smelter in Lake Linden, Michigan and H.Y. Bassett, a Calumet and Hecla Mining Company executive from the East Coast offices. The letters, including reports, address metallurgical issues as well as the results of comparative testing of Michigan copper versus copper from other regions as used by consumers of copper.

Abstract

Collection, 1874-2021 (Bulk 1874-1998), of research material and memorabilia compiled by Charles K. Hyde.

Abstract Records, 1933-1961, of patents issued to Michigan College of Mining and Technology in Houghton, Michigan relating to copper extrusion research conducted by university faculty members from the Department of Mechanical Engineering: Rex R. Seeber, Griffith N. Thresher and Almon P. Young. From 1934-1956 the extrusion research known as the Copper Fittings Research Project resulted in the issuance of 3 U.S. Patents, 15 foreign patents and 2 U.S. patent applications. Records include correspondence,...

Abstract The Copper Range Company (1899-1977) operated copper mines in Houghton County's southern communities and in Ontonagon County. The second largest mining company in the Copper Country (after Calumet & Hecla), the Copper Range Company was the only one to endure past the 1960s. In addition to mining, it owned and operated the Copper Range Railroad (1899-1973) and the Copper Range Motor Bus Company (1925-1955). Materials in the Copper Range Company Records document the history of the...

Abstract

Photograph collection, 1911-1915, of Robert Wood, a 1906 Michigan College of Mines alumni. Images were taken during his employment at the Quincy Smelter in Ripley, Michigan and include photographs of the smelting machinery and process as well as the end product - copper ingots, ingot bars, wire bars and cakes. Also included are two scrapbook pages with photographs of the Copper Harbor Lighthouse and surrounding area.