MAHLY (Jean-Frédéric). The road to Splugen. Circa 1820. In-8° oblong, leaves in a soft pink folder, green endpapers, in a blue cardboard slipcase with an etched cover glued to the first cover (Binding of the period). A fine album of watercolour views of the Splugen route. It includes a title page with a watercolour vignette, and 12 watercolour etched and finely watercoloured and gouached views, 7 x 10 cm, pasted on brown paper and protected by a serpente, with the artist's dry stamp in the margin: The inn at the foot of Mount Splugen, Chiavenna, The Avers torrent waterfall, The Lost Hole, Tusis (Graubünden), Chur, Camp Dolcino on the Splugen road, The village of Splugen, Andeer village on the Splugen road, Reichenau castle on the Splugen road, Via Mala, Gallery on the southern slope of Splugen.