Coin-operated stereoscope

A coin-operated stereoscope is a viewer designed for use in public places, where access to the images is controlled by the insertion of a coin. These viewer were typically installed in places such as hotels and exhibition halls.

Coin-operated stereoscopes are generally characterised by robust construction, intended to withstand frequent and unsupervised use. Most examples are of the chain-based type, presenting a sequence of multiple stereoviews following the insertion of a coin.