Probably an '85. Looks in nice shape, appears to have original curtains, original upholstery, and still has the swamp cooler. Maybe a little high on the price, but depends if it has any issues or not, like the typical window leaks
. It has the front window rock guard, which ours does not. I think the earlier models did not have them, as there is no signs that ours ever did. See if it has the cupboard latches that are on the front of the door and turn to open, that would be an indication it's a later model that came with the cupboard liners.