At-a-glance: A history of Ernie
The original lottery

Premium Bonds were launched by Harold Macmillan in April 1956, to reduce inflation and encourage thrift.

They are a unique way of saving money. Instead of interest payments, investors get a chance to win a cash prize.

As the new Ernie - the machine that selects winning numbers - is launched, BBC News takes a look at Ernie's history.

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