The Deckrullo Nettel Tropen (Tropical) is a tropical-bodied folding plate camera produced by Nettel Kamerawerk in the early 20th century. Tropical models of this era were built with teak or similar hardwoods and brass fittings to withstand humid climates, and were positioned as premium field cameras for serious photographers working overseas.

Auction data for the Deckrullo Nettel Tropen is extremely thin: a single recorded UK auction hammer result of £345 from 1998 is the only reference point available, and that figure is wholesale rather than a retail or dealer price. Given the age of that sale, today's value for a comparable example cannot be reliably stated from the data alone, and what a Tropen is worth in 2026 will depend heavily on woodwork condition, bellows integrity, and shutter function. Buyers researching what one sells for should treat the historic figure as indicative only and seek fresh comparables before committing.