Hawker Typhoon EK427 'S'.
Interesting history. According to the AM Form 78 held by RAF Museum, aircraft was only listed as being issued to No.268 Squadron RAF in 1944.
Whilst with No.268 Squadron RAF, it is only recorded once performing an operational sortie with that Squadron, being on 6 October 1944, Tac/R covering the area Zeebrugge Phillipine – excluding Teurnheuzen – coast to Zeebrugge. Uneventful, little activity or movement seen. This was nearing the end of the timeframe when No.268 Squadron RAF was using the Typhoons, basically they were all gone and either passed on to other units in penny packets or returned to 84GSU in the UK by the end of November 1944.
EK427 in this instance was passed on to No.IV(AC) Squadron, which was also a part of 35 (Recce) Wing which also comprised No.II(AC) Squadron and No.268 Squadron.
No.IV(AC) Squadron at the time was primarily equipped with Supermarine Spitfire PR.XIs operating in the high altitude PR role. The news that they were to get a number of ex-268 Typhoons to be used in the low to medium level PR role was greeted with some shock and dismay – their pilots knew the negativity the 268 pilots had towards the type compared to their usual Mustangs.
EK427 first shows up with them on 15 October 1944 being used for two sorties, one in the early morning as a part of a pair conducting a low level PR sortie (2,000 to 3,500ft) using split 5" camera in area of Venlo, then later as a solo sortie later in the morning covering area near Milligen.
It then shows up next on 4 December 1944 as part of a flight of four Typhoons that successfully completed coverage of the Arnhem area at 3,000ft, meeting meagre, accurate light flak during the photo runs. That is the last instance of EK427 being recorded flying operationally with No.IV(AC) Squadron.
Use of the Typhoon operationally with No.IV(AC) Squadron in the remainder of December 1944 and January 1945 is very limited, only about half a dozen sorties in total. Final operational sorties flown using a pair of Typhoons on 2 February 1945, nothing further recorded about them after that.
So given the information contained in both Squadron's ORBs and other records, EK427 was still equipped and using the spit 5inch lens oblique cameras fitted in the port wing between October 1944 and December 1944.
I have not yet found any references to EK427 being passed to any of the Typhoon Squadrons in 146 Wing, which was the other units to receive either pairs or singletons of the FR Typhoons for post-strike coverage. So most likely scenario is that EK427 went direct from No.IV(AC) Squadron sometime in January 1945 to the GSU where it was photographed whilst waiting for reallocation or disposal in March 1945. 35 (Recce) Wing had been experimenting with the forward facing cine camera installations in the inner cannon/camera bay position which would normally be occupied by the 12 inch low angle oblique camera (and a couple of other locations), but there is nothing in the recorded operational sortie details whilst EK427 was operated with either Squadron to show its use with that type of camera fitted operationally. So what you are seeing on the starboard inboard cannon stub is most likely nothing more than a blanking plate after the cannon was removed.