The checkerboard detail is quite common.
By markings, I meant that POLA is the only 135 in the fleet with the 'EC135' & 'Euorocopter' stickers on the cowlings
However, for my fellow recognition nerds out there, despite the blurring effect on the 'London' pic to hide some features, you will also notice;
i. Pilots face/helmet position.
ii. Rear obs right hand position.
iii. The reflection in the fenestron is clear.
iv. Rotating landing lamp still had that u/s bulb.
v. WMids Air Ops badge on rear observers right arm.
vi. Front observers helmet shows white patch between dark visor nose space.
vii. The black velcro strip at the bottom of the flip out panel in front of the pilot can be seen.
viii. The only cleanish area on the base of the normally white aerial rear of the exhaust is present.
ix. Somewhere during the computer manipulation, the camera has been 'adjusted', the ae on the tailboom has disappeared and the ac has been tilted slightly.
http://bhxflightguide.********.co.uk...uary-2014.html