The Kenmore 800 name, and rust chips, etc...
Mark -
Here's how we came up with the 800 name:
First, the model number if I recall is 110.700480x, where the x could be anything from a 0 to 3. This last digit is just an engineering revision when a part number somewhere in the machine changed during the model run. This required a change in the part schematics, and thus an alteration to the model number.
In this model number, the first two digits to the right of the decimal indicate the model year (1970), the next two digits, the 04, are non-suds (05 for suds), the next 8 is the series, or 80 or 800, and the last digit is the engineering revision.
Many of the Kenmore models from the early 70s into the mid-seventies did not indicate their series on the panels, including yours, though they sometimes did mention this under the lid in the operating instructions.
About the rust chunks - I think the most likely culprit for these is the centerpost or the centerpost of the basket. If you are going to seal the outer tub leak, you'll see right away when you remove the basket. I wish you luck with that!
Gordon