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.
1956 Supro Dual Tone White > Guitars Electric Solid Body
Supro Dual Tone 1959 White Guitar For Sale GuitarPoint
Supro Dual-Tone review
Supro 1224DBHT Limited Edition David Bowie 1961 Dual Tone White 2019 – Chicago Music Exchange
NAMM 2019: Supro Unveils New David Bowie 1961 Dual Tone
Supro 1624T Dual-Tone review
1960 Supro Dual Tone White > Guitars Electric Solid Body
1956 Supro Dual Tone White > Guitars Electric Solid Body
Supro Dual Tone 1961 Arctic White Guitar For Sale GuitarPoint
Wizard of Odd: 1964 Supro Dual Tone - Premier Guitar
1965 Supro Dual Tone White > Guitars Electric Semi-Hollow Body
Supro 1524 EW 2 - Dual-Tone Semi-Hollow Electric Guitar - Ermine White - Canada's Favourite Music Store - Acclaim Sound and Lighting
1961 Supro Dual Tone Artic White > Guitars Electric Solid Body
Supro David Bowie 1961 Dual Tone Guitar
1959 Supro Dual Tone – White – GuitarPoint