WOW,,that is an excellent deal! Looks like a nice machine. I have always loved Filter Queen vacs. An elderly neighbor lady had one when i was a kid, and she would let me come over and use it anytime i wanted to. She knew she would get her vacuuming done for free! lol
Hers was one of the older, pink models from the 1960s, early 70s, and did not have the PN, but i remember how quiet the machine was, and the incredible suction.
My only gripe with the modern day FQ is the power Nozzle. Just not very agressive, but is OK on low/no pile carpets. Of course a new brush roll, and new belt will always help.
I keep a FQ in my laundry room for cleaning out the dryer, and often use it to clean out the garage and car. And/or to grab for a quick clean up here and there.
They really are an excellent vacuum cleaner, with all of the sealed connections and metal attachments.
Jeesh, over 700 dollars back in 1984,,,that was a very expensive vacuum in its time!