The harvest pair looks to be an LD_-7800 set. That's the 1976 washer we had in white . . . and dryer in harvest exactly like the one you have. Loved that control panel design, particularly on the TOL model.
The avocado dryer has three tumble speeds. I believe it's around 1974. The washer has a three speed motor, 1970 to 1972, maybe? Neighbors inherited a matching Whirlpool set very similar to that from her mother. I went on a service call once for the washer, the agitator shaft was squeaking, they decided to let it go 'to the death' instead of repairing the bearings. The lighted console is very nice, it shines across the top and also up through the panel.