This is an Australian built car that someone has taken back to the UK (Vogues were always sold as Humbers in Australia). It would be a rare car in the UK - maybe the only Humber Vogue there. I got the chassis and engine numbers from the seller and it's a Mk III Vogue that has been retrofitted with a Mk IV Singer Vogue 1725 motor.
http://cgi.ebay.com.au/ws/eBayISAPI.dll ... :IT&ih=007
Search for Ebay item 170194306298 if the link didn't display properly
Cheers, Vic