The Gibson 335-S was a solid-body version of their very popular Electric Spanish guitar, the ES-335.
Although a very similar shape (though a little smaller), and with identical controls, being a solid-body rather than semi-acoustic guitar gave this model a rather different sound.
The 335-S came in three varieties: All models were fitted with two humbucking pickups, and two volume and two tone controls.
The pickups in the Deluxe and Custom were Gibson's "Dirty Fingers", with a coil-tap switch, to allow a single-coil mode, while the Standard had Gibson Superhumbuckers with no coil-tap facility.
All three versions were introduced in mid-1980; Custom and Standard ended production in 1981; the Deluxe in 1983.