Mia Culpa
Rich,
I am Gob Smacked.
You are absolutely correct.
The General Mills would have typically had a black plastic turntable and a timer. I have never seen one with the chrome turntable before.
The mixer performs, in everyway, like a Hamilton Beach. It is nice to not deal with the conjoined beaters and the beater gaurd of the HB which clogged with batter and sent it right up the spindles and all over the face of the mixer. There are two small gears in the ref thumb knob on the end of the handle. One on the speed dial and one which links to the speed control, just behind the gear box. In the General Mills it is not uncommon for the gears to slip or strip and you find the mixer most often running on high speed only.
If you look at the Betty Crocker Picture cook book from the 50's this mixer is used in the illustrations. The cookbook from the 40's shows a Sunbeam model 7 and the one from the 60's shows a Sunbeam MM, a Hamilton Beach model K and a GE.
Kelly