Abstract The Bos Leather Company was formed in 1909 in Grand Rapids, Michigan by Sidney (originally Sietse) J. Bos (1878-1941), a Dutch immigrant. The Bos firm specialized in shoe making, but also manufactured a limited amount of other leather products, such as briefcases. The Bos Leather Company records document the financial history of the firm, including inventory records from 1909 to 1967. Monthly sales records are included from the mid-1930s until 1967. A sample of trade publications and...