Old pound coins worth more than £169m are still languishing in piggy banks, jars or behind sofas nine months after they ceased to be legal tender, said the Royal Mint.
Although “round pounds” can no longer be used in shops, they can be returned to banks and paid into accounts, or exchanged for the new 12-sided £1 coin.
“We do not expect that all round £1 coins in circulation will be returned,” the Royal Mint said.
“Based on the returns of other demonetised coins, we expect there to be some returns for a number of years to come as people find these.”
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