Instructions for Both’s Patent Section Liner & Scale Divider, no. 1159, issued by Keuffel & Esser Co., New York and Chicago (n.d. [ca. 1891-94])

Instructions for Both’s Patent Section Liner & Scale Divider, no. 1159, issued by Keuffel & Esser Co., New York and Chicago, n.d. [c. 1891-94], p. 1.