Valiant

This aircraft first flew on 6th April 1956, which ties up with your posting #5… Might be worth contacting the Brooklands Museum -Julian TEMPLE or John PULFORD; we’ve got Valiant photographs, maybe the one you need!!
Links below should get you to them….

[email]juliantemple@brooklandsmuseum.com[/email]

or

[email]johnpulford@brooklandsmuseum.com[/email]

regards
Andywis