Beatrix Potter 4-Coin Series Details. Complete your 2018 Beatrix Potter collection reserve Peter Rabbits friends for a limited time only. Each silver Proof coin is part of a Limited Edition Presentation. For a limited time only, you will be able to reserve all four silver Proof coins in the series to ensure you dont miss out. Peter Rabbit will be available in 7 to 10 days, Flopsy Bunny will be available mid-March, The Tailor of Gloucester mid-April and Mrs. Tittlemouse completes the series mid-May. The item “The Complete 2018 Beatrix Potter Silver Proof 4 50p Coin Set Peter Rabbit” is in sale since Monday, February 19, 2018. This item is in the category “Coins\Coins\British\Decimal Coinage (c.1971-Now)\50p”. The seller is “andrewaward” and is located in Glasgow . This item can be shipped worldwide.