It came fitted with an old two-pin 2-amp plug commonly used before WW2 and, on the underside, the makers' name "Revo" Model? "12" and Serial Number 62384.
It bears a marking for 200 to 220 volts 50 Cycles but etched next to this is "240 volts".
I haven't plugged it in because the wiring is a bit too brittle for my liking.
I think there are plenty of Electric Fan followers out there so maybe one would care to comment on the Revo's true age?