A very nice Norton and an appealing story but there are a few issues; the page in the Works Records (below) where the entry for this CS1 should be has been damaged and while the gearbox (as fitted to this CS1) is listed, the numbers for the frame and engine are missing. While the framenumber as used by this CS1 could be correct, it is also a bit high to fit comfortably within the sequence as in the records. Further, as indicated by the vendor, many parts have been replaced since the Norton left the factory.
Is this a problem? Not for the Norton, it will be a very fine bike once it has had the attention that it deserves. The problem is that the story comes with a price tag and I would be worried about finding a next owner willing to pay the extra money for what's basically a few black and white photographs and a torn piece of paper.