The Dual Tone was part of a series of solidbodies produced by Supro starting in the late '50s. These guitars were also distributed under the Airline brand name. Many Supro designs were made from either wood or "Res-o-glass" material. Those made from Reso-o-glass are usually more desirable for collectors.
Airline Guitars Twin Tone White Supro Dual Tone Tribute
1956 Supro Dual Tone White > Guitars Electric Solid Body
1958 Supro Dual Tone White and black > Guitars Electric Solid Body
Supro 1224DBHT Limited Edition David Bowie 1961 Dual Tone White 2019
Supro Dual Tone Guitar 1950s - musical instruments - by owner - sale - craigslist
Supro Dual Tone White
1960 Supro Dual Tone White > Guitars Electric Solid Body
Supro 1224DBHT Limited Edition David Bowie 1961 Dual Tone White 2019 – Chicago Music Exchange
Eastwood Supro Dual Tone