Bottom right of scan.
Nav is as listed (looks about 13 years old...) though his initials were apparently P.J., not P.D., and the pilot is F/O Ray Smart.
The sortie referred to in the caption was on the night of 15/16 April 1943, when they claimed two Ju 87s shot down at Avord airfield, as well as damaging three locos and destroying one.
Frederic Henoff's excellent site says at least one of the Stukas claimed was actually an Fw 58 training aircraft, in which an instructor and his student were both killed.
http://www.fred.henoff.free.fr/liste_Tues_German.htmlI have the combat report for this action as well as for their other encounters if anyone wants to PM me.
Their aircraft's squadron code was UP-R, and was almost certainly one of the DZ-series Mossies to which 605 transitioned after being on Bostons. There's about a dozen possibilities for the serial number, though there *may* be some clues in the ORB, which I don't have.

Camo scheme looks to be grey/green above with matt black underneath, same as Greebo's lovely rendition of 418 Squadron's "Moonbeam McSwine."
Edit - The photo credit is Imperial War Museum, though it apparently doesn't appear in their online collection, scanned from "Mosquito Squadrons of the RAF."