Also a Possible large capacity washer although it should be branded Supreme if so. It would have the DD Super Surgilator if it is. Very early 80's if not late 70's machines and some of the best of their time save for a LC KM with DAA.
WK78
Yup. Whirlpool called it a Bac-Pak and it was a plastic holder on the back of the consoles of both their washers and dryers that held the owners manuals that were sized to fit there.