Hoover Windtunnel Self Propelled Farrington upright vacuum

I believe this is one of the rare self propelled models you don’t see these much and I’m glad I got one this was at a good will didn’t mean much work I don’t use it much at all cause it’s rare and just something to have in the collection plus it does need a bit of belt servicing I mean it’s not in all perfect shape but still a good rare American machine it has all its attachments and I think I needa service the self propelled or whatever also but overall it’s a good rare machine never see these