Workers Renovating A Shop In England Discover A Secret From The World War 2 Era

Counter Measure

So, to counter the Operation Bernhard the Bank of England created an emergency £1 bill. The note was blue in color and had a metallic thread which made its design a very unique and hard to copy. Two years later, bills of higher value than £5 were infused in the economy and in the 1970s the £20 bill was circulated in the market.