Records, 1903-1931, of the Calumet Brewing Company. Includes correspondence, bills and receipts. Although the company was dissolved in 1923, there is paperwork and correspondence with lawyers and insurance companies attempting to collect debts owed to the Calumet Brewing Co.

Collection, 1918-1939, of Quincy Mining Company billing invoices and receipts.

Records, 1883-1896, for Kerredge Hardware Store of Hancock, Michigan.

Ledger, 1906-1910, of the Lake Copper Company, a company operating in Ontonagon County, Michigan. Includes invoices pasted into a ledger, documenting the company's operating expenses.

Records, 1918-1969, of the Mass Co-Operative Company of Mass, Michigan with branches in Bruce Crossing and Baraga. Includes an account ledger, bills, receipts, stock certificates, and a check book with canceled checks.

Collection, 1974-2016, of administrative records, financial records, and operational records documenting the Michigan Technological University Film Board, a student-run theater.

Invoices, 1870, from Cleveland Rolling Mill Co. billed to Portage Lake and Lake Superior Ship Canal Company of Houghton, Michigan. Legislation for construction of the canal was passed in 1861 and created the Portage Lake and Lake Superior Ship Canal Company.

Correspondence, 1859-1910, received and sent by Richard M. Hoar, a prominent early citizen of Houghton, Michigan. Includes correspondence pertaining to his business with his brother, J. Hoar & Brother, a general merchandise business, as well as other business related correspondence, bills and receipts. Also includes correspondence from his capacity as a member of the Michigan state legislature and Houghton town official.