Looks like one of the first Whirlpool made KitchenAids to me. A friend of mine from high school has one and they like it.

I think another feature that distinguishes the 23 series from previous ones is the full-width utensil basket.  Earlier models had smaller ones with scalloped handles and no integrated cage for small items.

Most 23s did not have plastic control panels, in fact they had very heavy dia-cast metal panels. One of the nice things about the architectural models with the 6" high control panels was that your custom wood panels from your old worn out KD 16-17 DW would fit these new taller tub machines.

WP greatly improved he racks and upper rack wheels durability in the 23 series over the earlier Hobart design and construction. On the upper adjustable racks the flat vinyl coated side rails were changed to SS because this area often had problems with the vinal coating splitting along the top and bottom of the rail and then would rust badly. WP also beefed up and enlarged the tank mounted wheels for the top rack as the original Hobart design had a lot of problems with not only broken wheels but you also had to be very careful when the rack was fully loaded to pull and push it only from the center. This is common sense to most of us but many customers just grab the corner of a top DW rack and shove it in or pull it out and the original KA rack often had problems with broken wheels when this was done.