Back in 1958, Gibson started experimenting with cutaway designs for the Gibson Junior, Special and TV models. With sales of the Gibson Les Pauls maturing, the double-cutaway design was introduced in 1961 to give guitarists a different style guitar to the Les Paul. The Les Paul name stayed on the new shape guitars until 1963 when the great man's endorsement deal expired and Gibson called it the SG, or Solid Guitar, which is how it was referred to in the factory. The name was not, sadly, anything to do with Satan's Guitar as has been suggested by some reading too much into cutaway's resemblance to horns.