Security by Design — A closer look at Bank of England notes

Claims Supported by This Source

1. During World War II, counterfeit notes were printed at the Sachsenhausen concentration camp. The face value was £134 million, nearly 9 million notes, which was more than 10% of the notes in circulation in Britain at the time.
2. A banknote expert at the Bank described it as "the most dangerous ever" (quote from the booklet; speaker's name and date not mentioned).
3. In 1943, to counter the threat of forgery, the Bank stopped issuing denominations over £5 (timeline).
4. In 1957, it was replaced with a new blue £5 note. The old notes were vulnerable to replication, a fact that Operation Bernhard had clearly demonstrated.
5. Watermarks on banknote paper have been used since 1697 (timeline).

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