DOLLFUS A. First half of the 19th century. Portrait of a young man in vest and frock coat. Black pencil and stump (Insolate). Signed lower right A. Dollfus. F. Diameter: 16 cm. 19th-century wood and gilded stucco frame with a string of pearls and star motif (accidents and missing parts). General bibliography: on the Dollfus family, which included an important collector of antique paintings Jean (1823 - 1911) and a watercolor painter also named Jean (1891 - 1983), please refer to Nicolas Stoskopf's study, La face cachée de la famille Dollfus - Annuaire historique de Mulhouse, 2021, pp. 159 - 161.