There's a nice restored 24" 1949 Hetchins Super Special six day on Ebay. Posted below is the URL. The owner is mistaken, as he lists it as one of two surviving. The Super Special was produced from about 1942-1950 and then replaced by the Nulli Secundus. There are twenty four known to survive. If he's referring to one of two, it might be one of two from 1949, I emailed about this and heard from the owner, but with no acknowledgement about this issue. Peter Naiman Boston, Mass