That's the model "0", the 1st. You know the story about ( distant relative), Murray spangled. The besutiful one that graced the modern, " international building" in N Canton was sent to a desler.... to keep it from going to tti. But,it was sold back to them... the very thing the Hoover Company tried to prevent. I saw it, when I was at this. Retired Hoover employees went wild, upon learning this... needless to say... persona non grata now. They realize, now, that they should have sent it to the Historical Center. Although, they have several. As well as one in The Mc Kinley Museum.