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Philby has a key role in Mike Ripley's short story Gold Sword published in 'John Creasey's Crime Collection 1990' which was chosen as BBC Radio 4's Afternoon Story to mark the 50th anniversary of D-Day on 6 June 1994.
https://en.wikipedia.org/wiki/Kim_Philby
Or this:
https://en.wikipedia.org/wiki/Gold_Sword_for_Bravery
I reckon the actual reference is probably a weapon in Minecraft:
Isn't GoldSword something to do with Kim Philby? The cold war double agent. British spy turned defector to the USSR / sun reporter