Coin-op Viewer published 114 years ago by
Impossible to emulate.
Auto Stereoscope © 1905 Mills Novelty.
This stereoscope picture viewer shows fifteen beautiful views chosen by the buyer from thousands of available pictures.
Click to enlarge
TIPS AND TRICKS
Auto Stereoscope is able to run 175 times before it needs to be rewound.
Collector's Guide to Vintage Coin Machines - Richard M. Bueschel - Page 120