The Contessa Deckrullo Nettel Tropen (Tropical) in 6.5x9cm format is an early-20th-century folding plate camera built for use in hot and humid climates. Tropical models of this type were typically constructed with teak bodies and brass fittings in place of the leather-covered metalwork used on standard versions, and the Deckrullo line was known for its focal-plane shutter.

Auction data for this specific 6.5x9 Tropen variant is very thin: the only recorded UK saleroom result in our dataset is a single hammer price of £600 from 2011, so a meaningful current range cannot be derived. As of today, buyers researching what a Contessa Deckrullo Nettel Tropen 6.5x9 is worth should treat that figure as a historical wholesale data point rather than a guide to what the camera sells for now, and condition of the teak, bellows and shutter will drive any current value.