I posted this photo before on MLU, and the consensus was that it was a F15A I think though is that a Chevrolet front axle? The rego is Southend-on-Sea County Borough, possibly 1946. There was an ex-military vehicle dealer: Blowers & Coleman,12 Co-operative Goods Yard, Halstead, Essex, that sold ex-CMPs, Chev and Ford, and registered them we know in Essex County Council. They may also have registered vehicles in Southend or it could be another dealer.
Fords were rebuilt and sold on by a number of companies but Chevrolets were handled slghtly differently as General Motors Ltd acquired thousands for rebuild and resale, as did Pearsons of Liverpool, though some companies sold both!
PS:
I think that this photo has been posted three times now: here is one I found:
http://www.mapleleafup.org/forums/sh...light=southend
Note the wartime right headlamp!