Identify this old (50's?) Electrolux found in storage!

[Carl08]

One of the perks of living in semi-rural Sweden is the opportunities to find things like this! A box with a pair (and some extra bits) of old Electrolux vacuums found at a surplus store, and these ones truly fit the "vintage" label. I apologise for the poor lighting in the images, and my shaky hands, but these were in a dimly lit part of storage (and I didn't have time to pause my work to get great pictures but rather snapped some quick ones). Didn't have time to look for the data plate and won't be in that part of storage for a while so decided to ask, what model/year might this be?

(Hope I did everything right with attaching the images, if not I do apologise)

Cheers!
Alvar (Carl08)