Hi James,

Yes that’s a D4 complete with the factory supplied desk.

There are a few small differences with the blue being a lighter shade than I remember and my version has a spectacle control rather than stick as shown.

They can be identified from the earlier ANT and C versions by the lack of stub wings and tail feathers.

Two main variants were produced by Link Singer

D4 based on piston engined Provost
D4 Mk 2 based on Jet Provost

The version I was most usually on was the piston version. Strathallan had a D4 (not sure of the mark) wrapped on top of the offices and East Fortune had 5 in various states of strip (a couple of piston variants and a couple of jet variants.

Regards
Ross