One of the last times I saw Belgian Mirages was in 1992 when a couple of recce aircraft paid a visit to RAF Coltishall. This aircraft sports "High Speed Devil" on the nose.
The Belgian reconnaissance version of the Mirage V was a frequent visitor to European airshows during the late Cold War however this is the only time I ever saw the camera nose opened up like this on public display. The 1991 Mildenhall Air Fete.