KA KDS-17A
A very popular DW in its day, looks to be in really good shape, the rust around the heater nuts is nothing to worry about, that came from outside humidity from the DW being in a damp environment for prolonged periods of time, it also damaged the control panel trim.
Hook it up and put it to use, you can see they used poor detergent for water conditions, the new premium detergent pacs work best in these vintage DWs, one in the main wash, with a cheaper liquid or power in the pre-wash cups.
John L.