This machine is a White-Westinghouse Dual-Tumble, and this version was made from 1989-1994 I believe. Judging by the black knobs, this one is a later model. Instead of using "potato-pulleys" as did the previous models and tumbling in one direction, it used a reversing servo-motor and a separate electric pump, much like today's machines. I think it was produced under different brands; I'm not sure exactly how many though.
I have a 1993 model, in Almond. I bought them as a set in Dallas when I spotted a Craigslist ad...the matching dryer isn't in very good shape, but the washer works great. Westinghouse machines seem quite hard to find here in Texas, so I was definitely surprised.
They are fun machines, just as splashy as their predecessors with that water level control! The downside to these machines in my opinion is the aluminum tub drive pulley. These get weak over time and start making an AWFUL knocking sound...mine had this problem and I replaced the drive pulley. Replacing the pulley does the trick, but there is also this neat fix that John LeFever told me about at the Convention. It had something to do with wrapping copper wire around the tub drive lug; I'm not 100% sure on how this is done though.
If you're really interested, I'd say go for it! Like I mentioned before, it's interesting to see the modern American FL technology in its early stages!