Painted tops/panels - 1960s, 1970s, and on
There was a period in the late 1970s and early 1980s where Kenmore offered certain MOL models with painted tops, often combined with a porcelain lid. I never respected these models much as here on the east coast, these often rust, and badly, before the machine is worn out. They seem to have much more longevity due to the lack of humidity in the west.
I used to attach "blame" for that on the bean counters who were counting every penny, but I have come to find out that these were more the result of promotional models that Sears wanted to sell lots of at really low prices, thus we were seeing a lot of them in the 1990s entering the replacements population. The rest of the model lines usually remained with full porcelain tops and lids. Certain 1977 and 1979 models were very common without them and they seemed to be everywhere for a while.
I was of the understanding that all previous Kenmores, especially those from the 1960s, were always porcelain coated on the tops and lids, at least. John is certainly correct as well, that KM offered a full porcelain cabinet on some models, but they seem to be somewhat rare. They are noticeably heavier than their painted cabinet counterparts.
Since joining AW.org, I have learned, much to my surprise, that certain KM and WP models always had painted lids and tops, even in the porcelain rich days of the 1960s.
Kenmore 400, 500, and even some 60/600s were painted with baked or acrylic enamel. For the 1961 models for example, the first model to have the porcelain top and lid as standard was the 70 series. The 60 had a porcelain lid but painted top. The 500 had both lid and top painted, with blue one-coat tub. These are features usually reserved for total BOL units, and the 500 and 600 are not BOL or low-volume units. This really surprised me.
I've studied ads and catalogs closely, and Sears always mentions how much of the machine is porcelanized in the 'Construction' section. I was really surprised to see this, but it may explain why we seem to have a few of these older models in our collections, but usually the better models - the BOLs may have all rusted out long ago.
Same applies to WP, though I think they were more liberal with their porcelain. One member here I am certain has a painted top 1962 model.
Gordon