O.C. Geffken

Otto C. Geffken (1901–71) was an engineer at Vandercook & Sons and is named in at least one patent. The card, set in Kaufmann Bold and Stymie, is ca. 1938. Geffken appears in catalogs and model brochures of the era such as this one at right. (R.L. Pelland, another engineer, is believed to be  second from the left).