S2,
Brilliant catch. As soon as I saw the 'YF letters in your photo I had a head-slapping moment.
You can see why I called it the raspberry ripple. It was somewhat akin to the ghastly new Technicolor Yawn paintscheme which was inflicted upon the BEAS 212s circa 1977 when the company was taken over by Brand X.
I guess that photo was taken around Spring 1980 as it's got the high skids. They were put on for the AM contract in Zimbabwe as the job involved much landing in tall grass at the outer polling stations in de bush.
I remember making a bit of an arse of a practice auto in that thing as I stoofed the heels of the skids into the ground in a badly misjudged flare during my first flight with the new skids. No damage, other than to my pride.
Wearing a loaded pistol one one's hip when flying a G-reg aircraft was a bit of a novelty! It was a contractual stipulation, in case of any electoral unpleasantness. I think it was the UK Foreign Office (client) who insisted on that. Heaven forfend that anything like election monkey business should happen in Comrad Robert's socialist workers paradise!