Nice Royals, Hans!
Royals and other Royal-built brands (especially Electro-Hygiene!) are some of my favorites too! And I have that same 801, given to me last summer along with several other Royals, Electro-Hygienes, and Hoovers (all uprights), by a good friend who was downsizing his collection. I think that version of the 801 may be somewhat rare, with that unusual bag.
Think your 401 is a rare one too--I've never seen a chrome one in person, and yours is the only one I've ever seen pictured. Great machines, Hans!
Jeff