exceptional set from the two peep boxes from the same period c.1820, that shows places at the foot of the Champs-Élysées in Paris, but different sizes 12 x 14 cm and 10 x 13.5 cm, and different drawings of the Arc de Triomphe, very good condition, both reference: Kat. 24 Papier-Guckkästenshows from the Gestetner-collection