This vacuum is a beast!! It went under in a flood and still works perfectly fine other than the bottom plate is rusted out. What a champ!! It's actually a really quite vacuum for an upright.
I have this same model. Mine has a time dial date on it from 1984. This is a beast. I'm guessing it's the first Riccar vacuum? This is just the Panasonic private labled for Riccar.
The very first Riccar was a private labeled Vorwerk. Panasonic did the second and third versions before Tacony bought Riccar and brought the design "in house".