PEEPSHOW -- CONSTANTINOPEL. N.d. (c. 1835?). Accordion-folding peepshow representing a profile view of Istanbul with the Hagia Sophia in the centre consisting of 5 cold. lithogr. cut-out panels, expanding by paper bellows. The front-face, measuring 135 x 225 mm, forms the lid of the shallow cartonnage box containing the peepshow.