It's a lot of money for the later type tank...An early 'large' tank in good condition can fetch that much at a push, with the 'non cut off' types nearer to £200 or so...Ian
If it was unused then why does it have a C-number painted on it/ And I can't find C4112074 on the list of BSA in British Forces Motorcycles. Only 411- series I can see are in the Norton lists?