This shows the stereo photograph as a 3-D anaglyph – you will need a pair of red-blue anaglyph glasses to see the image in three dimensions.

Walking in the Kasbah. Hottot visited Algeria in 1909 with the publisher Edouard Champion, a close friend with whom he maintained a long correspondence.
Algiers, Algeria. 1909.

Pitt Rivers Museum 1994.62.406