The bike in discussion, KXF 352 was last taxed on the 1-1-1998, and to date remains untaxed. It is of particular interest to me as it was first registered in August 1949, which exactly the same month and year as my Rapide, a series C Rapide with HRD Crankcases, but the auction bike has HRD Crankcases with Vincent timing chest cover and tappet caps, and straight lug seat stays, my bike has a HRD timing chest cover and tappet caps and curved seat stays, I would really like to know the numbers, but might be difficult now. When I went to the Isle of Man in 2007 I met up with a member in Lancaster, Howard, sadly no longer with us, who had an engine number chronological to my bike, which was nice!