In 1991 I bought my mom a GE Lg. Cap Filter-Flo and it had one toggle / rocker switch for wash/spin speed on the left side. It had 2 knobs in the middle for temp, and water level, then on the right it had the cycle selctor knob. In 1992/3, I remeber the builder installing new one speed GE Filter-Flo washers with two rocker switches controlling temp and water levels. These machines had no knobs in the middle....That's the best of my memory...TOL models in those years definitely had pushbutton selections on the left. These machines were also the first to use only the "GE" logo and not the General Electric brand name.
Mike