Dan. I do apologise you are quite correct in that the aircraft posted was not a Jetstream 31 and I should have made that clear at the time of accepting windriver's answer. You are of course correct it was a photograph of the panel belonging to a RAF Jetstream T Mk1 powered by Astazou XVID engines. I believe in fact the aircraft concerned was XX499 callsign 'G'. As you rightly say previously operated by the RAF as a trainer.
Here is the panel of a Jestream 31.
Many thanks for raising the point.