Rare
The c3 or c4 with the roto magic power nozzle circa 1960s. The power nozzle on it I want to say ABC nozzle and I don't know what ABC means I just know that is the rare power head.
The vacuum is awesome. Power nozzle is made by eureka. The system is amazing. It cleans all surfaces and bit keeps its cfm close to 100 cfm at hose. I may be off but the vacuum does hard wood, dusting, upholstery, carpet etc. It does all the surface well and it's all in one vacuum. I initially liked the blower port. It has more pressure than say the Kirby as it has a smaller hose. It just does it all. It's tied with my Kirby d80 as my favorite vacuum.
Les