Visor estereoscópico
Vistascreen Company
View the embedded image gallery online at:
http://photomuseum.es/index.php/es/component/k2/item/624-vistascreen-stereo-viewer#sigProId6d38a09317
http://photomuseum.es/index.php/es/component/k2/item/624-vistascreen-stereo-viewer#sigProId6d38a09317