New Portable Audio-Visual Selling tool.
Automatic Sound Slidefilm Viewer in an Attache Case. Self-Winding, Self-Contained, Ready to Use. Just:
1) Open the screen
2) Plug it in
3) Push the red button, and The Show is On!
The 1961 Beseler Salesmate Projector included a built in cassette player for sales presentations. The Charles Beseler Co. was founded in 1869 in Germany as a manufacturer of a variety of products including inhalers, magic lanterns with oil lamps and stereopticons.
[Postcard with caption found here.]