Brussels: Libraries de l'Office de Publicité, (c. 1850). Six hand-colored, movable double-engravings; one engraving is half-pasted from the top, another from the bottom, and their remaining halves are pasted together to create a flap that the reader may flip down to see one image and up to see the other. Here the technique is put to apt geographic use as a visual and mechanical aid to accompanying descriptions of different climates: Africa/the Mediterranean Sea, a medieval estate/a prehistoric cave, polar ice caps/an Icelandic volcano, European mountains/the American frontier, northern Europe/Egypt; Switzerland/Mauritius.
16mo. (12)pp. Bound in orange paper wrappers with a decorative upper cover, which suffers a small chip at the upper left corner. Some soiling to exterior, trace interior foxing, shelf-toning to rear cover, else near fine. Item #31440