White man in front of an aboriginal hut, N.S.W. - unknown photographer, Glass, masking paper .8.2 x 8.2 cm

A Lantern Slide of a white man in front of an aboriginal hut, N.S.W.

The magic lantern or laterna magica was an early type of image projector employing painted pictures or photographs on sheets of glass, a lens and a bright light source. It was mostly developed in the 17th century and commonly used for entertainment purposes. It became a common medium for educational purposes around 1800 until it was succeeded by slide projectors in the 1950s.
Source - wikipedia.org