When was the Gibson ES 335 guitars made?

1958 Released by the Gibson Guitar Corporation as part of its ES (Electric Spanish) series in 1958, it is neither fully hollow nor fully solid; instead, a solid maple wood block runs through the center of its body.

What does SG mean on a Gibson guitar?

Solid Guitar Gibson also honored Les Pauls request to remove his name from the guitar, and the new model was renamed SG, which stood for Solid Guitar.