Also if you do visit the link, all of the pics have a description, they're complete entries, if anyone is interested in a Hotpoint Rim-Flo introduction. You can access a lot of my other machines from there as well.
I *think* they're 1985's. The dryer is a 1985, but the serial number on the washer's plate was partially scuffed off and not readable. They're pretty closely matched so the washer can't be far from 85 if it's not. The washer is model WLW3500BBLWH. The dryer is a 1985 model DLB2650BDLWH.