Jecker François-Antoine, mechanic, born November 14, 1765 in Hirtzfelden, died September 30, 1834, Bust, facing, Julien-Léopold Boilly, 1790
Engraving of françois-antoine jecker (1765 – 1834), french scientific instrument maker. Date: 1790. Dimensions: height: 24.2 cm (9.5 in); width: 15 cm (5.9 in). Medium: lithograph. Collection: Bibliothèque nationale de France. Antoine-François Jecker