Hoover Specials
Dan, apart from some very early pre-1920 Hoovers, Special was the name normally used to denote machines rebuilt in the U.S Hoover factory at North Canton; thus there were 700 Specials, 541 Specials, 105 Specials etc.
I expect that your 425 Special will be a 1932 machine, rebuilt at North Canton, possibly just after WWII.
I don't have a 425 Special, though might have seen one listed but I do have at least two 105 specials and at least two 541 Specials
Incidentally I know that Hoover, like many other manufacturers, were engaged making special equipment for the War effort and that supply of new machines either ceased or was very limited during WWII. Can anyone here confirm whether Hoover sold any reconditioned machines during the war?..or was work confined only to servicing of customers' existing machines?
Stephen