The Zeiss Ikon Trona 210/1 is a folding plate and roll-film camera produced by Zeiss Ikon, the German manufacturer formed in 1926 from the merger of Contessa-Nettel, Ernemann, Goerz and Ica. It belongs to the early generation of Zeiss Ikon folders introduced in the late 1920s, sitting in the mid-tier of the company's folding-camera range when new.

Auction data for the Trona 210/1 is very thin: a single recorded UK saleroom hammer result sits at £100 (2005), so today's value guidance is indicative rather than firm. With only one verified sale, anyone asking what a Trona 210/1 is worth in 2026 should treat that figure as a baseline reference point rather than a reliable median, and expect condition, completeness of bellows and lens/shutter function to drive any actual price achieved.