Great picture, do you have more?
What I can fathom is that mkIIF's were on August 1941 used by squadrons 255 (located at RAF Hibaldstow, received first mkII's on 22nd July 1941, and 307 (Polish squadron, located at time in
RAF Clyst Honiton, received first of these on 14th Aug 1941). So most probably this picture is from RAF Hibaldstow?
The serial numbers available for 255 in Aug 1941 are stated to be
R2304 YD-D, 2308 YD-P, 2309 YD-Q, R2310 ??-?, R2370 YD-N, R2377 YD-O, R2397 YD-T, R2398 ??-?, R2399 ??-?, R2400 YD-S, R2401 ??-?, R2402 YD-G, R2403 YD-D (Written off 22nd Aug 1941), R2430 YD-U, R2431 YD-E, R2432 ??-?, R2433 YD-V, R2436 YD-R, R2460 YD-J (last arrival of August on 25th).
Looking at the serials (assuming that 255 Squadron is correct), all the R-serials would be produced already in 1940 to contract 983771/39.
Any log books or other info would give much more detail on this specific aircraft.
sources:
Bristol Beaufighter - Squadrons
No. 255 Squadron (RAF) during the Second World War
http://www.historyofwar.org/air/units/RAF/307_wwII.html
https://nlahcentre.com/history-of-ra...stow-airfield/
Bristol Type 156 Beaufighter
Miscellany