Actually Oreck in the past used to have other companies make products for them. Oreck had Hoover made those before both of the brands were later acquired by TTI, kind of a coincidence.
This is very old and very early. This is nowhere near recent. Likely 40 years old. 1981 or 1982 somewhere around there. This was when Oreck was first starting out. That was Oreck's first logo design.
The OSHA certification on the bottom means this was a model made for the commercial market.