The "diagram" in the ad says the switch is in the grip, while the switch on both the 1911 Ohio and the Tuec were on the base. The 1911 had a pull chain by the motor, and the Tuec had a handle fork operated switch, as shown here:
I'd love to see an example, or even a more descriptive ad for one. Seems pretty rare.
The Rayvac is the very first model of Frantz Premier. I got the machine from Stan Kann himself as well as a vintage ad for it. Stan's didn't have a bag so he put one on it from a Cadillac. Very primitive machine.
The video of Stan and his two Ohio cleaners was taken during the convention of the VCA (vacuum collectors association) in 2007. I was there. In fact, tons of my friends were there too. I saw Stan every Sunday then, and scheduled that fun tour of his collection for my friends to experience. He was one of a kind.