View from a Window of the Hotel "Russischer Hof"

Talbot was the British inventor and photography pioneer who invented the calotype process. Calotype, or talbotype, was an early photographic process (introduced in 1841) that used paper coated with silver iodide. Despite their flexibility and the ease with which they could be made, calotypes did not displace the daguerreotype. In part this was the result of Talbot having patented his processes, unlike Daguerre who had been granted a stipend by the French state in exchange for making his process publicly available. Open access worked even in the 19th century!