Nice machine!
It's an early version of the Mobile Maid, possibly a 1954 or 1955 model. The wash system is an impeller-driven one - if loaded correctly, the machine has a surprising capacity and cleans reasonably well.
They are pretty easy machines to work on - the water valve may cause some trouble and the water supply and drain hoses may need replacing. I have a manual for this machine, too, if you need it.