I'm just sharing a "Bored Panda" post: Beautiful pictures taken in 1913 using the Lumiere Brothers autochrome technique, that is, early color slides. Click on the link to see more beautiful image.
More details about the model in the picture and how the pictures were taken can be found here.
For example, about the picture above, the captions says:
Christina on the Beach, 1913, Mervyn O’Gorman © Royal Photographic Society Collection: The comparatively long exposure time has given the sea a glassy quality and the large aperture setting and narrow depth of field has put Durdle Door, in the background, into soft focus.