Full history and eligibility can be found here

the plaque was intended as a permanent reminder of sacrifice and loss

This is the Queen Elizabeth II version of this award

also referred to as The Campaign Service Medal replaced the GSM (Army & RAF) and the Navy GSM in 1964 and was backdated to December 1962 to cover the Borneo campaign

Made in Britain using original wartime production methods

George Cross Category_ Miniature World War II Full history and eligibility canThe George Cross is the second in the order of wear and is the highest gallantry award for civilians. Awarded for acts of heroism and courage in extreme danger, the George Cross may be awarded posthumously