Illustrated and exhibited: Le Daguerreotype franþais: Un objet photographique, Paris, Musée d'Orsay, 2003, catalog # 169. Inscribed Pl 15 on reverse; which refers to Plate 15 of a series of published engravings called "La Loire Infériure, Vues de Nantes et de ses Environs" issued by the prominent Nantes publisher Jules Forest in 1842.