Victor Portable Stereopticon or a Viopticon

Description: Victor Animatograph Co. advertisement for slide projectors. Sourced from National Geographic magazine.
Document type:
advertisement
Author: Victor Animatograph Co.
Language: English
Publisher: National Geographic Magazine
Place of production: Washington, D. C., United States
Date: 1913-12
Dimensions: height 25.4, width 17.3
NAC: 2008.1712