There also seems to be extra metal around the edge of side. The item "2016 British One Pound £1 Coin Minting Error Off Centre Collar Slip Egg Error" is in sale since Tuesday, September 29, 2020. This item is in the category "Coins\Coins\British\Decimal Coinage (c.
The seller is "jaycecoulso0" and is located in Lincoln. This item can be shipped worldwide.