The Concava Tessina is a subminiature 35mm camera produced in Switzerland from the late 1950s. Its compact rectangular body uses specially loaded cassettes of 35mm film to produce small negatives, and it was positioned as a discreet precision instrument rather than a mainstream consumer camera.

With only two UK auction hammer results on file — £199 in 2002 and £1,840 in 1998 — the dataset is too thin to define a reliable current value, though it indicates the chrome Tessina has historically sold across a wide spread at saleroom level. As of today in 2026, what a Concava Tessina is worth depends heavily on completeness of accessories and cosmetic condition, and any quoted price should be treated as indicative rather than a firm market level.