Lot of six engravings: - The Chinese botanist after the work of François Boucher. 20,5 x 13 cm (at sight). - Two optical views : Saint Peter of Rome - Venice, the grand canal fish market. 27,5 x 42,5 cm or 36,5 x 49 cm (on view). - Two views of Vienna: Der Hot and der hohe Market), Paris Hoffmeister. 15 x 19 cm (on view). - Map of Geneva. 24 x 59.5 cm (on view). Gilded baguette frames.