Kevin,
Have a look at
http://jowett.org/ and click on the link to the Jowett Car
Club of Australia. You will find a picture of three Jowett Bradford `utes`.
Antipodean members will be most interested in your find! Should have a flat
twin watercooled engine in the front, post war cars (Javelin, looks not
unlike a 401, and Jupiter, not unlike a Jag XK120, have watercooled flat
four engines). I have a couple of Jupiters, one standard and one with a
special body by Richard Mead, who also built the Rover Marauders and is
reputed to have bodied a Bristol, but I have yet to find any evidence of
this.
Jowetts ceased trading in the early `50s but an active club keeps them alive
and supplied with spares.
Regards
John P