Oh, yes I've seen some of those GEs with the three beaters, had a light underneath to light up the bowl too.
I have a Mixmaster with those looped hooks you're describing. Harvest gold color. Really like this mixer, though I haven't tried the dough hooks. I just use it for batters mostly, kind of overkill, but it does a great job and I like using it and seeing the bowl spin. It makes things more airy too. The date on the recipe book says 1975.