Nice Machines!
These are early 806s, an HA806 washer and an HDE806 dryer, as David has said. The decorative chrome strip at the top of the front panel was standard issue at that time.
The washer should have a chrome-top lint filter, and the dryer is a Halo of Heat model.
Pluses include the true bleach dispenser and a tub light on the washer, and a lighted porcelain drum in the dryer.
Minuses include a dryer lint filter positioned at the rear of the dryer drum, and no low heat setting on the dryer. 806 washers of this generation have only three water level settings, not four as is found on the later machines.
The Harvest color and the early features would put the washer at not earlier than 1969, but not later than 1974, when the control panel insert color was changed from blue to gold. The dryer might be very special - on my monitor, it looks like its panel insert color could be gold instead of blue. That puts it 1974-75 or so, if I'm not mistaken. You could be looking at a pair purchased during the changeover, or machines purchased at different times. A HOH dryer with a gold panel is pretty rare; most units with gold panels are the later "big door" machines with a low heat setting and front-mounted lint filter.
Issues could include the usual older Maytag washer issues (damper pads needing replacement, possible tranny issues, etc.). On the dryer, the felt front seal usually needs replacement, and there can be an electronic issue with the automatic shutoff. All these issues are totally copable if one has mechanical aptitude and patience.
They're very nice machines, and you're tawkin' to someone who is no fan of Harvest. They're fairly priced, too. [this post was last edited: 8/17/2013-20:06]