This is the Micro V, the inspiration for various envelope filters. I think many people prefer it to the III. It has a unique sound pressure and character that can only be achieved with this unit. The condition is superb, and it's an early model with the original box. There is writing on the side of the box, possibly by the original owner, in marker. Mint condition units with the box can go for around 250,000 yen in the market, so I think the price will continue to rise rather than fall.