sentences:  It is known for its single P-90 treble pickup, and the single piece 'wrap-around' bridge instead of the two-piece “tune-o-matic” bridge and tails-stop arrangement found on the SG Standard.From 1961 to 1963, it was branded with the "Les Paul Junior" name.In 1963, "Les Paul" was removed from the headstock and it was officially called the SG Junior.