Strongly suspect this is an elusive VS-1 if anybody is looking for one, can't see what else it could be measuring 6k, the pole pieces are correct, though the low E magnet has slipped. Very expensive though.
https://www.ebay.co.uk/itm/12584067...6dyJ3hoSoe&var=&widget_ver=artemis&media=COPY
https://www.ebay.co.uk/itm/12584067...6dyJ3hoSoe&var=&widget_ver=artemis&media=COPY