Back in the 70's,
My Aunt Etta Mae, who lived in Kansas, had the same Lady Kenmore washer and dryer in her basement (hers were harvest yellow). All those buttons on both machines looked really cool. And, if I'm not mistaken, the washer had a detergent/lint filter on the right hand side. Me and my brother got to take turns dumping the detergent in there (hey, it was the basement...we had to do something for entertainment) when the water started flowing out at the beginning of the wash cycle.