"Eder was the director of an institute for graphic processes and the author of an early history of photography. With the photochemist Valenta, he produced a portfolio in January 1896, less than a month after Wilhelm C…
"Eder was the director of an institute for graphic processes and the author of an early history of photography. With the photochemist Valenta, he produced a portfolio in January 1896, less than a month after Wilhelm C…
