It looks like a Eureka model shortly after the Roll-O-Matic (shown here in candy apple red/gray) I'd say late 1950's. This style was also made by Singer, around the same time.
The cleaner was made by Eureka about 1960-61 if memory is correct. It used the big C paper bags I think. Sorry I can't tell you more. I was given one just like it a couple of years ago.