Probably a genuine Nyon edition. Nyon, a Parisian printer, and Jean-François Bassompierre in Liège, who were in competition in the market to sell the marquis de Caraccioli’s edition, sometimes used the addresses of their colleagues to confuse their rivals and to give greater authenticity to the counterfeiting process. See D. Droixhe, ‘De quelques critères en bibliographie matérielle. Contrefaçons de Stanislas Ier, Helvétius, Raynal et Caraccioli conservées en Espagne’, La memoria de los libros, ed. P. M. Cátedra & M. L. López-Vidriero, Madrid-Soria, Instituto de Historia del Libro y de la Lectura, 2004, p. 589-626 - http://hdl.handle.net/2268/962. Rev. D. Adams, D. Droixhe & A. Piette.