The “Unchained” guitar, also called “Circles” guitar due to Fender releasing it via their striped series and calling it such (but it’s historically just been called the Unchained guitar until recent years) is one of Ed’s more iconic guitars used during the 1981 Fair Warning tour. The “Unchained” name procured due to Ed specifically using it for the song of the same name, mainly due to the song requiring drop D tuning. It’s also called the “See Ya” guitar due to Ed having the phrase on the back of the guitar in 1981.
In 1982, Ed repainted the guitar into what is known as the “Rasta” guitar. Although it’s the same guitar, the dramatic paint difference often creates confusion on them being two separate guitars, which they are not.