Hi, it was mad by Hoover Ltd, Great Britain, serial number :
42771004277 I'm almost sure it was purchased in 1978, it belonged to my friend's mother.
Also if you look at the topic "1978 hoover brochure" you can see it; It was available in white/yellow and white/orange, as well as the Constellation in that period. Both the Classic 427 and the Cnstellation 867, have been sold in italy til 1983 but, what a shame, they didn't have the original set of white tools and alluminium wands but the same cream tools as the last Freedom (forza 1000 in italy)series, i was horrible because colors didn't match at all. the last Constellation had the red lever switch replaced by an anonimous white switch.The end of an era.
tommy