ok - start with a bit of history then. In 1957 Electrolux Canada introduced the 80 series. All three machines (83, 86 and 88) were out at that time with the 83 being the cheapy, 86 being the standard and the 88 being the delux. In 1963 the design was changed slightly and the bumpers added. At this time they dropped the 83 and started producing the 86 with the cord halo (For $30 more you could add the cord reel). Around 1965 or 1966 they began importing the PN1 from the US. It could be used with any of the 80 series machines. The new ones came with the outlet in the handle. If you had an older 80 series machine the repair depo would put a new handle on it with the outlet in it. The first of the PN1's sold here, like the US, had the long plastic wand attached to them. By late 1967 we were producing a plastic telescopic wand that was removable (The cord still clipped to the outside of it) Then, with the introduction of the models 87 and 89 (Green) in 1968 we brought out the telescopic wand with the cord built in. PN1's were still being produced in red at this time as well as green (but with the new style wand)as there was still a big market for retrofitting them to older machines.
Hope this clears things up a bit
Doug