Thanks everyone!
Update - I spent some time going over it. It was very clean inside, but apparently hadn't been oiled or had gears greased in a very long time. it was dry as a bone. One piece of dust "under the hood" and none in the bobbin area. No rust at all. I cleaned up some dried oil or grease near the top gears, but, other than that, gave it a Tri-FLow drink and put some motor lube in the motor well, as indicated in the manual, and then tinkered with the tension. I think it is good right now. It isn't whisper quiet, but sews well and so far doesn't seem to be laboring. I think a few more sessions on it will give the Tri-Flow a better chance to do it's job. I'm wondering if anyone used it much or it sat in a closet. I'm pretty sure by its condition that it wasn't outside in a garage or shed. I'm looking at it right now and I'm pretty pleased with it!!!!