Widely considered the largest counterfeiting operation in history, Nazi Germany's plot to crash the British economy with fake banknotes sounds like a Hollywood script. Now, those true events have inspired the latest twist in the Peaky Blinders saga, with the forged notes going on display in a new exhibition. Operation Bernhard, named after SS Major Friederich Bernhard Krüger, forced more than 140 Jewish prisoners at a concentration camp near Berlin to study and create high-quality replications