Photozincography: Advances in Cartography
Photozincography, or heliozincography, was a revolutionary way of copying photographic negatives onto zinc to be used for map making, outlines, engravings, and the reproduction of images.
Photozincography, or heliozincography, was a revolutionary way of copying photographic negatives onto zinc to be used for map making, outlines, engravings, and the reproduction of images.