To add to the discussion about markings and config. over the course of her career, I stumbled over the following clip on the IWM archive site a few weeks ago. From 09.17 onward, ‘868 is shown in good detail. She has all the later features others have mentioned (big nose bowl, H2S blister), but what surprised me were the spinners. Red tips?? Judge for yourself.

( Note: the clip opens with some air-air footage of 617sqn, including Mustang lead ship, interesting in itself).

https://film.iwmcollections.org.uk/record/2017