Great images in that link... How about this:
Original image:
Edit to show the possible hints of HS-B
And a 260 sqadron desert P-40... Wrong type though (no Allison):
Speculation

It definately is a B though... But we want the squadron letters and my HS feels more vague
He he, doing more web research, naturally someone did an IL2 skin for this AC:
http://asisbiz.com/il2/P-40-RAF-SAAF...0-Edwards.html
And someone restored it or painted another one
And it was scrapped in 1944 as I understand it

More theories?
And in
this thread at some forum more people speculate on HS-B (and the pilot "Stocky Edwards" is obviously still alive -
http://en.wikipedia.org/wiki/James_Francis_Edwards - someone got to ask him if he ditched a plane and forgot about it

)
http://forum.keypublishing.com/showthread.php?p=1882370