Many thanks to SWLing Post contributor, Mario Filippi, who writes:
While perusing through a 1959 Lafayette Radio sales flyer, this hybrid radio/sunglasses radio was spotted (see image above). Put a huge smile on my face–a three-transistor, germanium diode model hihi. Runs on a Mercury battery which were common years back.
That is fantastic, Mario! Love it.
I can tell you that I think Spectra-Radio seem a lot cooler than Google Glasses! Thank you for sharing!
Spectac..lular! For some color pics see here (where else?): https://www.radiomuseum.org/r/sakura_radio_sunglasses_spectac.html
Similar model (slightly different shape), same era: https://www.radiomuseum.org/r/ross_radio_sunglasses_spectac.html
eBay auction (yikes!): https://www.ebay.com/itm/363096741529
The idea persists: https://www.kidwiseusa.com/sportstronics-fm-radio-sunglasses.html
A particularly modern version: https://www.theguardian.com/technology/2019/jul/08/bose-frames-review-smart-audio-sunglasses-are-a-blast