D9,
Have you seen this one? It doesn't help with the underwing serials though.
http://tinyurl.com/jlsqdxo
I wonder where the photo was taken. Maybe in England? It is interesting that the yellow star had not been added.
Follow up. I found this picture of an Airfix model, but have no idea if the serials are correctly displayed.
http://www.aircraftresourcecenter.co...-Param/00.shtm
However, the orientation is the same as on this Twin Pin: