That's a sharp-looking pair of what appear to be 1973s-going by the instruction manuals and the pigtail-end hose. Also, the PN-2 debuted in 1973 according to the 1972 and 1973 1205 manuals. If you have an entire Electrolux teal set (CB, B-8 & Rug Washer) consider posting a group photo of them on this thread.
I'd like to find your source of all those shiny cleaners in your collection with their original and well-preserved manuals, cartons, accessories, and attachments!