Proton 100 Brochure
This is the cover for a brochure promoting the Proton 100 pocket FM radio. The radio as pictured is slightly different from the radio as it was actually produced: the Proton logo was eventually placed at the bottom rather than just below the power switch, as shown in this photo.
The brochure also contains technical specifications for the radio.
Watches were somewhat smaller then, but beards came back in the 2010's!
I don't remember how I originally acquired this brochure.