I found these today. They are stereoscopic views and the above picture shows:
- Coronation of King Edward VII in London
- The Great Wall of China
- Duke of York celebrations Melbourne : Chinese procession and the Queen's Arch
I think they belonged to my grandparents or possibly my great grandparents. We just have the cards not the viewer. But they are very interesting and the rest of the cards (there are lots) show scenes from Hobart, Sydney, India, China and London.
"A stereograph is a twin photograph that has been taken by a special two-lens camera. Each lens is spaced the same distance apart as our eyes. The two images are then mounted side-by-side on a cardboard mount and can placed in a viewer or 'stereoscope'. The resultant 3-D image is incredibly realistic. Viewing stereoscopic images was an important form of family entertainment 100 – 150 years ago." http://www.abc.net.au/tv/collectors/segments/s2558360.htm