Ken, I hate to tell you, but this impeller machine is a far better performer than the one you pictured. The impeller models more thoroughly drain after each portion of the cycle and enhance the drain by having a flush of fresh water in the last few seconds of the drain to guarantee a clean out of any solids remaining, much like the GE combos give that power flush at the end of each drain except after the final rinse. The GE pump & wash arm machines left a good amount of water in the pump after each drain and since it had no filter, the heavier than water soil was very slow to be flushed out meaning it kept getting sprayed over the dishes each time the machine started to recirculate water.
I have never seen a GE portable dishwasher in turquoise. This is quite a find. Please show us a picture of the GE Textolite top. Ours had stripes of white and beige, maybe with tiny sprinkles, I think, but after more than 4 decades, I am not sure.