A plain, low option wagon. Edit.. Dealer says 50k original miles, some rust but solid underneath http://rockford.craigslist.org/cto/5180754651.html
It's 150K, judging by the grime on the engine. The damned odoms do not have a 100K digit, so saying it has '50K' means nothing.
Not sure. Looks pretty decent inside and out. The comment about a "few bubbles" is scary. That means a few rust areas way bigger than we might expect if this is a northern Illinois vehicle. Steering wheel and seats don't look real worn. A 45 year old engine does get cruddy over time.
I don't think I've ever seen an original blue car with a tan interior from this era. Repaint? Then again it is "ALL ORIGIANAL".
I would guess 150k by the condition of the driver's door armrest. Unless the previous owners were really, really dirty people. Notice the rust on the bottom of the door too.