1932
Very good pat, but I didn't get it out of that 1987 book you describe. It came out of a 1970's magazine reprint. It is the very first GE dishwasher, from 1932. Apparently that black door is actually a shelf that flips up to help in loading and unloading. While this is not anywhere near the first home dishwasher, its GE's first. I post pictures of some very cool even earlier dishwashers later.
Now wouldn't that be a cool find!! I bet it has a green and white speckled porcelain interior with stainless steel racks and a tiny, undersized impeller. I saw an 1930's GE dishwasher once last year as part of a sink combo it was over 55" wide, otherwise I would have taken it home.