1935-40 An early example of collotype printing. Plate 1 [collotype]
Lange, Jakob E., 1864-1941 Flora Agaricina Danica
[Copenhagen: Recato a/s, 1935-40]
Image Courtesy of the Farlow Library of Cryptogamic Botany
Previous image - 1929 An early, and one of the best, examples of heliotype printing.