The Bittner Klappo is a folding plate camera, a body type widely produced in the early twentieth century before roll-film designs displaced folding plate equipment. Bittner is an obscure maker, and the Klappo appears in collector references rather than mainstream camera catalogues.

Auction data for the Klappo is extremely thin: a single recorded UK saleroom hammer result of £385 (May 2005) is the only public benchmark, so any sense of what one is worth today rests on that lone data point rather than an established market. With no comparable sales since, the price a Klappo sells for in 2026 will depend heavily on completeness and condition, and serious buyers should treat that figure as indicative only.