The Gibson SG is a solid-body electric guitar model introduced by Gibson in 1961, following on from the 1952 Gibson Les Paul. It remains in production today in many variations of the initial design. The SG Standard is Gibson's best-selling model of all time. SG stands for "solid guitar".
1984 Gibson SG Standard
SG Standard (Les Paul)
SG Custom
SG Special
A solid-body musical instrument is a string instrument such as a guitar, bass or violin built without its normal sound box and relying on an electromagnetic pickup system to directly detect the vibrations of the strings; these instruments are usually plugged into an instrument amplifier and loudspeaker to be heard. Solid-body instruments are preferred in situations where acoustic feedback may otherwise be a problem and are inherently both less expensive to build and more rugged than acoustic electric instruments.
Fender Esquire 1st prototype in 1949 at Fender Guitar Factory museum
Example : Mid-1970s "Lawsuit Era", solid-body, set neck, Mann/Ibanez electric guitar