Hi Flavio,
From Men of the BoB,
"After breaking an ancle in the blackout, Finucane entered RAF hospital, Halton on November 14th and left a week later to convalesce at Torquay. He rejoined 452 then at Kenley, on January 19th 1942.
One week later Finucane took command of 602 Squadron at Redhill ( this would be around the 26th January), he was wounded on 20th February in an engagement with FW190s over the channel."
And according to "Aces High"vol 1 He flew BL548 on the 20th February 1942 when he damaged the FW190.
Also, I have recently come accross a simular photo of "W" taken from a different position but cannot find it now

again the squadron code cannot be seen but an "LO" a/c is again in the background.
All for now
Alex