Hey, that's either a KDSS-21 or a KUDS21SS. I'm restoring a KDSS-21 myself right now. I had to buy two different computer modules for this thing, one was brand new in box from Eaton after they bought Singer controls. Yikes, was that ever high priced. The two detergent cups not being opened on the one in the pictures kinda would scare me. The later 22 and 23 digital models were a bit more reliable.