This is one of the later/newer models as can be seen from the slightly more Velcro friendly rubber baseplate design. Boxed with paperwork as can be seen in pictures.
Boss DS1 Distortion Guitar Effects Pedal
BOSS MT-2 Metal Zone Guitar Pedal BOSS MT2 Distortion Pedal
BOSS Classic DS-1 Distortion guitar effect pedal Boxed excellent
Boss OS-2 Overdrive/Distortion Guitar Pedal
Boss MT-2 Metal Zone Distortion Pedal for Electric Guitar Pre-Owned
Boss HM-2 Heavy Metal Distortion Guitar Pedal
