Thanks, everyone, especially Desert Tortoise. No, I don't have the black plastic filter frame. We haven't used the Kenmore for about 8 years, but the frame must have been missing for longer than that because all I remember is the filter itself sitting on top.
After I posted a couple of days ago, our Eureka Boss SmartVac needed repairs, and I found a shop on Angie's List. The owner is a character and has been in the business for 30 years. When I told him we had a brown and beige Kenmore canister from the early '70s that was missing the model number, he rattled off 4 likely model numbers. When I told him it said "Kenmore 2.0 Magicord" on the top, he said it's this particular model number, and he could make a filter for it. Wow.
However, maybe it won't work without the filter frame, or won't work efficiently. DT, do you know?
I'm complimented that you thought about buying the Kenmore. Please cut yourself some slack on the apology.
Here's the deal. When I told the vacuum character guy that the roller in the Eureka was turning slowly, even though we'd replaced the belt, he asked if we had long-haired dogs. Yes, two big ones and a little one, plus two cats. He said the animal hair wraps around the ends of the roller, heats up, and melts the plastic ends.
When I asked what vacuum he'd recommend for lots of pet hair, he said a Sanitaire, which is made by Eureka. Evidently, it has a metal roller with metal ball and socket joints. One of his customers has two Saint Bernards and kept bringing in his Dyson Animal to have the roller replaced. Finally, the vacuum guy told him to borrow the Sanitaire while he was fixing the Dyson. The Saint Bernard guy was sold - no comparison.
So now we have a Sanitaire and donated the Eureka to the vacuum guy's vacuum charity. The only thing is, the Sanitaire has no hose. We need a hose and were going to use the Kenmore. However, if it won't work well because it doesn't have a filter frame, I'd talk with you about a price, but you might not want it with that part missing - understandable. Tomorrow, I'll also ask the vacuum guy about the consequences of the missing frame, although you may know more than he does.
Long story long.
Many thanks