The right hand power nozzle is a PN-2. It launched in 1973, during the last of the model 1205s. It ran with the Golden Jubilee, and was the power nozzle of the first version of the Super J. The problem with it was three things. One, it would seal down to the rug making it hard to push. Two, it had NO edge cleaning feature. Three, the cord would come unplugged from the top of the power nozzle as the wand raised and lowered during normal cleaning. It's actually a two wire cord, the third pin is a locator pin (that's why its plastic). On the commercial models, it was replaced by a metal pin for the grounding wire. The beater bar brush roller was an option, as was three row brushes, and very soft bristle brushes as well. Interestingly the PN-2 was the only Electrolux brush roller for a power nozzle that could be adjusted to compensate for bristle wear.