The original Gibson Double-Neck models were produced between 1958 and 1962. They were basically twin-necked hollow-body instruments similar to the ES-175 and are very rare.
In '62, the original design changed to a solid body resembling a Gibson SG. This version is best-known among musicians and collectors.
This double-neck features two volume and two tone control knobs, a three-way pick-up selector switch and a three-way neck-selector switch. Other distinctive features include Nashville TOM bridge, stop-plate tailpieces and 490 Alnico (R) and 498 Alnico (T) Humbucking pick-ups.
The scale length is 24 3/4 and a nut width of 1.68 inches. It has chrome hardware, vintage tulip tuners, pearloid split inlays, a black pickguard and twenty frets per-neck. The body is solid mahogany, necks of three-piece maple, topped with rosewood fingerboards and a "Heritage" Cherry finish.