That machine ran along side the Hoover model 305, which it's designed after. The NORCA (which stands for North Canton), was sold in Retail stores and had a four row brush roller with NO beater bars, making it 'different' from the model 305 the Hoover Salesmen were selling door to door (all Hoovers were sold door to door at that time). The replacement bag and cord are a shame, as the NORCA is an extremely rare cleaner - the original bag would have made that machine sell for hundreds of dollars on eBay.