Kodachrome print showing a young woman in a bathing costume with a pair of water-skis. Kodachrome film, the first multi-layer colour film, was introduced in 1935 by Eastman Kodak, initially in the form of 16mm movie film, followed by 35mm and 828 size films for still photography. In 1941 Kodak introduced a service for providing prints from Kodachrome transparencies. The new material comprised three emulsion layers similar to those of Kodachrome film, but coated on a white opaque film base. The service was named 'Kodachrome Prints' in 1946 and this image was used to promote the service.
© National Museum of Science & Media / Science & Society Picture Library