Rhonda -
Thanks for the info. update. You said:
The official digits from the back of the washer are:
Model # - 110.6514712C00
Serial # - 12157J65C
I am betting that the serial 12157J65C is actually 12157J650. If so, that would be production in St. Joe Michigan (J) in the 50th week of 1966. That translates into mid December, 1966 which agrees perfectly with the date on your literature.
Other than a little bit of cosmetic difference, my machine does not have the filtering light. It has the later agitator in gold with the gold scrubber cap.
In case you are ever shopping for parts, the C00 in your model number is not really part of the official model number. I'm not sure why Sears did that, other than to denote color (C for Coppertone), but the full model is 110.6514712. I think mine is 110.6514715.
We're looking forward to your test results!
Gordon