Original design with 6 opamps and those three dual Vactrol optocouplers. Wonderful lush sound. Looks almost unused, though the box has plenty of shelf wear. A later block-logo version as it has a 1/8" (3.5mm) adapter jack and a status LED. The production number inside the pedal and on the box do not exactly match - almost do. That's because MXR back then was not always good at matching those things up in the factory. Finish a pedal, toss it in the closest box. Finally, the old foam in this had gotten pretty crumbly, so I removed it and replaced with clean, red foam. Super clean and works perfectly.
Add $15 for shipping, if needed.