The instrument in the illustration shows a white line limit of M1.7.
This is commensurate with the limitation of Lightning Marks F1, F1A F2 due to directional stability and radome strength considerations.
Subsequent marks with the larger square topped fin and strengthened radar housing were cleared to M2.0 ( not M2.2 as previously claimed).
It could thus indeed be from a Lightning simulator. I have flown the F1A simulator, and it is a tribute to my grey matter that I can't remember details.