Visor estereoscópico
Desconocido
View the embedded image gallery online at:
https://www.photomuseum.es/index.php/eu/component/k2/item/618-visor-estereoscopico#sigProId40f5c1c6f4
https://www.photomuseum.es/index.php/eu/component/k2/item/618-visor-estereoscopico#sigProId40f5c1c6f4