The Trona is a folding plate camera, originally made by Krugener. Manufacture was then continued after the creation of Ica, and was one of Ica's models produced after the merger which formed Zeiss Ikon. It was available in two plate sizes, 9x12cm, 6.5x9cm, and was supplied with different lens/shutter combinations. The camera has double extension bellows with front rise and cross movements.
|Ica Trona 210 with 13.5cm f4.5 Tessar lens in dial-set Compur shutter|
image by Nicholas Middleton (Image rights)
|Ica Trona 210 with 12.5cm f6.8 Goerz Doppel-anastigmat lens in Compound shutter|
image by Gösta Knochenhauer (Image rights)
|Zeiss Ikon Trona 210/5 with 13.5cm f4.5 Tessar lens in rim-set Compur shutter|
image by OZBOX (Image rights)