ATA personnel Lettice Curtis, Jenny Broad, Audrey Sale-Barker, <a href="https://en.wikipedia.org/wiki/Gabrielle_Patterson" class="extiw" title="en:Gabrielle Patterson">Gabrielle Patterson</a>, Pauline Gower. by Combat Engineering Board - UK Government so 50 years - guess at 1945 to be safe
CEB - Combat Engineering Board claim copyright
1945-01-02
<a rel="nofollow" class="external free" href="https://www.rafmuseum.org.uk/images/online_exhibitions/GM4-62LG.jpg">https://www.rafmuseum.org.uk/images/online_exhibitions/GM4-62LG.jpg</a>