Bob's dates are correct on the washer and this was the TOL model save for the big button one with the door on the control panel. This is one of my favorites of the era. There's a similar one from a year or two earlier where the timer window is above, rather than to the left of the dial. I think on that one only the dial part lights up, whereas this one has a fluorescent light all the way across. The earlier one still had the metal lid lifter thing.
The one I remember of this had the detergent dispenser with a lid that was flush with the washer top, rather than this raised box style, so that change must have occurred during the run.