Some eBay sellers of all sorts of stuff do that as 'Click bait' just to publicise their business and to get browsers to view their 'Shop' or 'Other items'.
Looking at his Feedback this dealer has sold many cars.
'There is a tide in the affairs of men
Which taken at the flood............'
As for very original, that's quite baffling, I assume the price is meant to be £10k, but forgot the decimal point, it is pre decimalisation, also pre Fluff Brown AJS, and Norton Villiers didn't sell Enduro's, but I do like the 370 in the box, but I wouldn't pay that price for it.