1960s Frigidaire Wall ovens
My Aunt Arlene in Pennsylvania has the first self-cleaning version of this oven with SS doors, it was installed in a custom built all electric home they built and moved into in 1966. The larger upper oven in the SC version of this oven is FAR MORE EFFICIENT than the oven being offered for sale, when my aunts oven has been on for hours it almost impossible to tell it is even turned on when standing close to it. Self cleaning ovens SAVE far more electricity during mormal baking than the several times a year cleaning cycles ever could dream of using.
Every time she cleaned her oven the most difficult to clean part of the oven was cleaned also, the racks, and the racks still look great. Yes they looked like hundreds of good meals had been cooked in the oven, but they are clean and not rusty. If I see a customer who has an immaculate oven with shinny racks you can safety assume that the either don't cook or they are way too anal to be a very interesting person.
I highly dough Julia Child's ovens had shinny racks, in fact I wish that all manufactures would put a dark porcelain coating on their racks as it makes for a much better looking oven interior, GE has started doing this better porcelain coating on many of their better SCOs over the last ten years or so. Ken don't take my remarks personally as I have never been in your house and have no idea what your oven racks look like,LOL.
This is just my opinion after having serviced and cleaned several thousand ovens during my career selling and repairing ovens, if I had my way SCOs would be required by law as an energy saving measure by the DOE, even if people never use the feature the energy savings are large.
John L.