Handwritten letters of Gail Borden (1859-1860) and letterpress copies; cash book (1856); "Private Code" books used by the Borden Company (1925); stock certificates (1870); mid 19th century postcard used to promote Eagle Brand Sweetened Condensed Milk; promotional history with biographical notes concerning Borden; buyer's guide to retail products (c. 1950s); and a glass antique butter churn.