Looks to be an interesting read and an equally nice looking book. For the first time amongst any national/international organization is an authorized historical account. Looking forward to this release. While doing some perusing, was curious about the crest, which is really quite beautiful. Here is an excerpt from the official MI5 website:
At the centre of the Service crest, which was approved by the Garter, Principal King of Arms in 1981, is a golden winged sea lion on a blue background which represents our historical association with the three armed services. The colour blue signifies our overseas ties. Surrounding this central emblem are three further symbols: a green cinquefoil, a portcullis and a red rose. The cinquefoil’s five petals allude to the “5″ in MI5, and the colour green has been associated with intelligence since the First World War.
The portcullis, traditionally a symbol of parliament, relates to the Service’s function of upholding parliamentary democracy, and the crown over the top of the portcullis at the top of the crest refers to our status as crown servants. The rose has historical associations with state intelligence work – Sir Francis Walsingham, the head of Queen Elizabeth I’s 16th century “intelligencers”, used it on his seal. At the bottom of the crest is our motto: “Regnum Defende”, meaning “Defend the Realm”.
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