I do have a Eureka Emperor, which I was told was made by Panasonic. I had always wondered if they made one with their name on it, so this must be it. Mine still works, but from what I've heard, most of them did not have long motor lives, so you don't see many around. I don't ever recall seeing them sold in stores, they might have been a vac shop model. I believe the Emperor was also sold at Montgomery Wards with the Signature badge.