Six Vivi Tone Instruments circa 1935
After Lloyd Loar left the Gibson company he started the Vivi Tone company.
He designed many electric and acoustic electric instruments under the Vivi Tone name including solid body electric guitars, solid body violas, and electric pianos. Way ahead of his time.
Here are two mandolins, one acoustic and one Acousti-Electric. And four guitars, two acoustic and two Acousti-Electric.