This washer is the fountain filter, solid-tub design from the mid to late 1960s before Hotpoint changed these washers to a rim-flo version of GE's FF. And yes, if possible should be saved as a set.
Amazing this is still around. 1970 - 1973 Hotpoint WLW2400 washer. If someone does pick up this set please feel free to reach out for any tips or questions.
The transition from Taylor/Chicago to Appliance Park/Louisville had already begun when this pair was built - the dryer uses the GE cabinet and design. The washer would follow a few years later, in accordance with Ben's timetable (above).